I want to upgrade my account on the forum that says I transfer 1 wallet to a certain address, but how can I confirm which account has paid fees to upgrade?
By upgrading the account you mean to buy the copper membership ?
Before buying that, can you tell us what is the exact reason for you to upgrade your account ? Do you want to publish your service which requires you to post images ? Remember that in most cases you don't need to upgrade account and continue your free journey here.