Unable to Access My Steam Account After Changing Phone and Number

I can’t log into my Steam account after changing my phone and phone number. I know my password, and the email associated with the account is still accessible, but I am unable to receive a Steam Guard code to log in.

I contacted Steam support for assistance, but I have yet to receive a response. This issue has left me locked out of my account, unable to access my games or make purchases.

I need urgent help to regain access to my account. Steam must address this issue promptly and provide clear guidance for users who face similar problems after changing their devices or numbers. Please resolve this as soon as possible.