To use Amazon Pay, the customer only needs an Amazon account. Payments are made using the method of payment deposited at Amazon - either by direct debit or credit card. Amazon Pay does not pass on the payment data stored in your Amazon.de customer account to the seller.
You are on the safe side. Optimize your payment process with an online payment option that is already trusted by millions of Amazon customers and has yet been optimized for your devices, such as smartphones or tablets.