I replaced my card.

But it still says

Invalid payment method

What do I do, how do I activate my merchant account?

I have not been able to complete the registration process for more than two months. I am in complete despair, I have indicated and provided all the data. But my account is not active. I am required to have the correct power of attorney, but I do not understand which power of attorney, from whom to whom? I am a private entrepreneur, this is my account, I create it personally and in my personal interests. I ask written questions in the hope that people will answer, they will help me figure it out, but we are all crazy about artificial intelligence and inadequate robots answer me,If suddenly one of the top employees reads my message, you know you are in a bad way. During this time, I sold my product on Ebay for several thousand euros, but I can't go through the registration process with you. it feels like you don't really need new partners.

anyone help me ?

i have been charged long time store fees , it turn out i have one pcs long time stock ,

But i checked myself , my stock is zero what happened ？