I'm trying to subscribe, but my card was declined
According to our payment system, cards can be declined for a variety of reasons.
We are sorry, but we do not have access to further information about the reason for a card decline.
Please check the following points once again.
Whether it is supported payment card bland or not.
Has the card expired?
Is the usage limit exceeded?
Also, if possible, please contact your credit card company, try paying with another credit / debit card, or use PayPal.