Apple tv4k billing problem and ITunes

Hi

I‘m trying to buy a app called IPLAY on my apple tv 4k. The

message I get is: Payment Information Required. Go to Itunes Store on your

computer and update your Billing info.

On Itunes I update my Billing info and I get this message: There

is am issuse with your payment method. Update your payment information to

correct the problem and try again.

I have done it many time. Always the same message.

Can someone help me