Managing, opening, or closing your mobile wallet account: Money transfer, virtual currency, or money service

I have all the info to log into my account such as username, email, and old phone number. I switched banks and phones so i no longer have old bank info or my old phone number to log back into my account. Over the phone I was rejected from accessing my account and refused from accessing my own finances in that account despite just needing to switch the old number to my new current one.