Not sure about all the personal stuff, but it is against the TOS to transfer the account.
Big answer is I DONT KNOW, but…
For payment/address stuff you could change them then try to revert to see if it works. For payment get a $5 gift card from Wal-Mart and set that as the credit card.
It’s still open for a other 40 hours.
Go here: https://www.gog.com/en/game/tropico_4 then clock the link that says go to giveaway.