payment details for icloud

hi there, i recently received an email saying my payment details needed updating for my icloud storage account to be maintained or it would revert to 5gb standard.

I did log in and renew my details with the addition of cvc number for my card, yet it has still reverted back as i recieved and email telling me today i was over my storage.

I have been on the increased 200gb for years. And it seems to keep not accepting my payment details i have also attempted to add paypal as my default payment method however it still doesn’t appear that i can process it in order to update my subscription?