Have you ever listed or sold any items on this account?
This is a member to member forum, not 'Ebay' and other members don't have access to your account.
Have you added a bank account and followed all the steps on Ebay's help pages to actually open a selling account?
Basic details are here:
https://www.ebay.co.uk/help/selling/selling/start-selling-ebay?id=4081
If you need to add documents, ID etc. you could try the resolution centre.
I believe that is for business sellers and you have a private account.
"There are two ways to be fooled. One is to believe what isn't true; the other is to refuse to believe what is true.”
Søren Kierkegaard, Danish philosopher (1813 - 1855)
