Thanks for that update fifabrownlee
Live support would have the most accurate information when it comes to accounts, since they have access to tools and records we don't have on the forums. I'm afraid that if live support said that using the recognized console is the only way to verify the account, then it likely means alternative methods aren't available in this situation.
Sorry for any confusion earlier. It'd be best to continue working with support and checking in with another advisor to confirm if anything else can be done.