Promo Codes for Existing Customers: Where to Find UK Discounts

Posted on 04 Nov 2026 by Julian House
There’s a familiar disappointment when you’ve filled your basket, found a promising discount and then spotted those words: “new customers only”. You’ve shopped there for years, yet the saving seems to be reserved for someone placing their first order. We know how frustrating that feels, especially when you’re trying to keep the weekly shop or a family takeaway within budget.

Finding promo codes for existing customers takes a slightly different approach. Alongside public promotions, it helps to check your account, app and retailer emails for offers intended for you. Here at Promo Codes For, we want to help you spend less without sending you round in circles. This guide explains where to look, what to check and how to work out whether a discount will actually make your next order cheaper.

Shopper browsing online on a laptop Check the offer terms before paying, so you know whether your order qualifies. Photo: Microsoft Edge on Unsplash.[/caption]

Can existing customers use promo codes?


Yes, when the promotion allows it. A previous order does not rule you out of every discount, but it can exclude you from a welcome offer. Before trying a voucher, work out which of these three groups it belongs to:

  • Public promotions: offers that may accept new and existing customers, subject to the stated terms.

  • Personal offers: discounts sent to selected accounts. Seeing the same voucher online does not mean your account can redeem it.

  • Welcome-back offers: invitations aimed at customers who have stopped ordering or cancelled a subscription. Qualification depends on the invitation.


Having an account and having placed an order are different things, too. Read the retailer’s definition of a new customer rather than assuming that an unused account qualifies. A first app order may also have its own rules. Downloading an app does not automatically reset your customer status.

Supermarket discount codes for existing customers


For repeat grocery orders, check both public vouchers and your own account. Product coupons, personalised prices and loyalty rewards can help even when there is no money-off voucher for the whole basket. They work differently, so compare the saving you can actually use.

 

Morrisons


Start with our Morrisons promo codes, checking whether each offer accepts returning shoppers. Separately, Morrisons More provides personalised offers and money-off coupons. These are worth checking against the items you already buy; a reward is less useful if it encourages you to add things you do not need.

 

Tesco


Our Tesco promo codes and offers are a starting point, but pay attention to first-online-order restrictions. Tesco also explains that some eCoupons are restricted to the person they were sent to. Check your own coupons and Clubcard vouchers rather than relying on a personal offer shared by somebody else. Follow the stated eligibility rules; changing an email address does not establish that you qualify as a new customer.

 

Ocado


If you’re looking for Ocado discount codes for existing customers, look beyond the headline welcome discount. Ocado’s help guidance directs shoppers to their Coupon page and says coupons can also appear by email or at checkout. Compare what is available in your account with our Ocado discount codes. Check whether the saving applies to particular products or your basket as a whole.

 

Sainsbury’s


Check the customer restrictions on our Sainsbury’s promo codes before planning a shop around a voucher. For another route to savings, Sainsbury’s describes Your Nectar Prices as personalised product offers based on shopping history. These are price reductions rather than a general checkout promo code. Compare the prices on your planned purchases instead of treating a loyalty offer as money off everything.

 

Asda


Browse our Asda discount codes for relevant promotions, then check any Asda Rewards balance separately. Under the scheme’s terms, Cashpot value can be converted into vouchers for eligible shopping. That is a reward you have earned, rather than a public discount available to every returning customer. Check the voucher’s conditions and validity before building it into your budget.

 

Iceland


With our Iceland promo codes, check the audience, minimum spend and any product exclusions first. If a promotion is limited to a first order, move on to an eligible offer rather than adding extra items to chase it. Compare the complete shop, including the delivery charge shown for your order. A smaller discount can still produce a cheaper total.

This is the distinction to keep in mind when comparing supermarket savings:

























Type of saving What to check
Public promo code Does it accept existing customers, and does your basket qualify?
Personal coupon Was it issued to your account, and is it still valid?
Loyalty price Is your membership linked, and are you buying an eligible product?
Reward voucher Do you have enough earned value, and what redemption rules apply?

Paper grocery bags filled with fresh vegetables on a table Focus grocery discounts on the food you planned to buy. Photo

Food delivery promo codes for existing users


When you’re hungry, it’s tempting to try the largest discount you see and hope for the best. A quick eligibility check saves a lot of frustration here, because food delivery promotions can depend on your account as well as your order.

 

Uber Eats


Uber Eats’ help guidance confirms that some promotions are limited to particular users or people who received an email or in-app notification. When browsing our Uber Eats promo codes, check for those restrictions first. If a friend has received an offer that you cannot see, it may be personal to their account.

Check the discount cap as well. A percentage offer with a low maximum saving may be worth less than it first appears, particularly on a larger order. Look at the amount deducted before you pay.

 

Deliveroo


Use our Deliveroo promo codes to check available listings, then read the conditions for the individual voucher. Deliveroo’s help page explains that vouchers can be added through “Vouchers and Credit” in your account. Customer restrictions and any participating restaurant requirements still apply.

For either service, compare the final price after delivery, service and any small-order fees. Free delivery does not necessarily remove the other charges. We would rather you save a few pounds on the meal you wanted than spend more to reach a discount threshold.

 

Shopping discounts for returning customers


For clothing and other shopping, look for promotions that explicitly include existing customers or whose terms permit your order. Our SHEIN promo codes give you a place to start, but check each listing’s restrictions rather than assuming every advertised discount applies to a repeat purchase.

Where you have account vouchers or rewards, compare the choices at checkout. Do not assume they can be combined with a public promo code. The best option is the one that leaves you with the lowest total for the items you intended to buy, after delivery. An impressive percentage on a restricted selection may save less than a modest discount on your actual basket.

 

How to check whether a discount applies to you


Before spending time filling a basket around an offer, take a moment to check these details:

  1. Customer eligibility: does it say existing customers, all customers, first orders or selected accounts?

  2. Where it works: check the website, app, delivery area and participating retailer or restaurant.

  3. Minimum spend: find out which items count towards it and whether delivery is excluded.

  4. Exclusions: look for restricted brands, products, sale items or subscription orders.

  5. Expiry: check any deadline, including a required delivery date if specified.

  6. The checkout total: confirm that the discount appears before authorising payment.


A little arithmetic helps. If your planned basket is £45 and an offer gives £5 off £50, adding £5 of unwanted items leaves you spending the same £45. You have more shopping, but no cash saving. If those extras are essentials you would buy anyway, the calculation may work for you.

 

Why won’t my promo code work?


An error message does not always mean the voucher has expired. Your basket may qualify while your account does not, especially with targeted or welcome-back offers. Read the message carefully: “not eligible” points to a different problem from “minimum spend not met”.

If you have edited your basket, check whether removing an item or applying another promotion has taken the eligible subtotal below the threshold. Also look for an earlier discount that the checkout has already selected. Some offers cannot be used together.

For a personal voucher that should work, contact the retailer with the offer email and error message. Keep a screenshot of the terms. Avoid repeatedly increasing your order to make an unexplained error disappear, and do not assume a discount can be refunded after payment.

 

Frequently asked questions


Can I use a promo code if I have ordered before?


Yes, if its terms allow existing customers and your order meets the other conditions. Check the individual promotion; a previous purchase does not exclude you from all future discounts.

 

Can existing customers use newsletter discount codes?


It depends on the wording. An offer for new email subscribers may still require a first purchase. Signing up to emails does not override a new-customer restriction, so read both the sign-up message and the voucher terms.

 

What does “selected customers only” mean?


The retailer has limited the offer to a particular group of accounts. You may need to receive it directly by email, app notification or an account message. A publicly shared voucher value is not proof that you qualify.

 

Are welcome-back offers available to every returning customer?


No. They may be aimed at customers who have not ordered for a particular period or who received a specific invitation. Use the conditions attached to your offer rather than assuming a break from shopping guarantees a discount.

 

Can I use the same promo code more than once?


Only if the terms permit repeat use. Restrictions may apply per account, person, household or promotion period. A voucher that worked last time may also have expired or reached its redemption limit.

 

Make your next order count


You do not have to be a first-time shopper to look for a better deal. Start with our merchant pages, check your personal offers and compare the amount you will actually pay. We’re here to help you find a saving that fits your shopping, without buying more than you need.

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