Locked out because of 2FA malfunction

My 2FA codes are considered invalid.

I tried setting device time automatically.
I tried setting manually +/-1 minute.

The codes come from a device where I backed them up and restored them.

My account doesn’t have SSH key so no recovery option left.

I had to create a new mail and a new gitlab account to ask for help because gitlab don’t have email support.

The fact I’m locked out isn’t really a problem anymore, I just would like to have the account deleted so I can use it’s name again.