### Answer
I don't have information in the sources about expected response times for support@retellai.com or an alternative escalation path beyond that email.
Some similar cases in community/Discord threads show users tagging Retell team members directly in the support channels to get traction on stalled verification issues [(1) ](
) [(2) ](
) [(3) ](
) . For example, one user with a blocked SMS verification issue eventually got help after tagging support staff directly and providing details via DM [(3) ](
) .
Given your case is signup/phone-verification related and email hasn't gotten a response, you could try re-sending to support@retellai.com with your account email and a summary of the issue clearly stated, since that's the documented support contact [(4) ](
) .
I don't have further information in the sources on guaranteed response times or how to expedite a stuck support ticket.