Subscribing impossible

I try to subscribe on skritter, but it tells me my credit card number is refused. On my skritter account the card number is different from my Google account and even if I correct it, it does not work. What can I do?

Thanks for your help

@iradie What client are you trying to subscribe on? It sounds like you’re trying to subscribe through Google, so I would recommend looking into the Payment Methods section on your Google Play account. Direct link here.