That’s how my requests started as well. Then they needed the email receipt and confirmation of the email address that it was sent to (which I have), then multiple types of confirmation that the old email couldn’t be reactivated/accessed, then in-game information like nickname (which I changed each wipe so I don’t know), then username (?) and confirmation from my bank of payment being sent. That’s where I’m stuck. That’s like 5 years ago and the two payment methods I possibly used at the time don’t have records for it (very long story).
That’s the point where I gave up. The game isn’t worth spending any more of my time haggling with BSG support or sifting through paperwork and emails.