I have multiple kttis with multiple debit cards. How do I tell them apart in my digital wallet?

When you define the colour of your ktti, the card will match that colour. If you have 4 different kttis, our advice is to make them all different colours - that way you'll easily be able to tell which card belongs to which ktti. If the colour is the same across more than one ktti, you can also check the last 4 digits of your card in the KttiPay app and compare it with the cards in your digital wallet.