

This video shows the card number validation in practice. Once you’ve been able to identify the user’s card type, leave only the relevant logo highlighted and grey out the others. Use Issuer Identification Number (IIN) lookups to validate the card number as the user enters it. Show logos for the cards you accept as icons so users can see whether their card is supported. This makes it easy for users to transcribe the information from their payment card. Present all fields on a single page, in the order in which they appear on a credit or debit card. Allow additional spaces, hyphens and dashes. Let users enter payment card numbers in whatever format is familiar to them. If you cannot use GOV.UK Pay and need to build your own payment service, follow this pattern to collect payment card details from your users. When to use this patternīefore using this pattern, check if GOV.UK Pay is suitable for your service.

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