Reinstalling doorbell 2 subscription issues

I changed my mobile phone well over a year ago and after struggling to connect my doorbell to my new phone I gave up. Several months later I cancelled my subscription. After a recent local burglary I’ve started the seemingly impossible task again. I’ve managed to connect the doorbell to my phone using my alternative email address, but my bank card is now being rejected when I’m trying to start a new protection plan. I don’t have an alternative card. Is there any reason why I can’t use my same bank card?