Human support can be social-engineered or bribed. You hear about SIM jacking, OG Instagram account takeover, etc. because of human support.
It certainly sucks, but in this case you lost your second factor, which is very different from the other flagged-as-suspicious-and-locked-out-permanently cases.
It certainly sucks, but in this case you lost your second factor, which is very different from the other flagged-as-suspicious-and-locked-out-permanently cases.