Yes, as @Timer posted, porting your public phone number to another provider closes your account with public, meaning you also lose access to your My Account. There should be no further charges on your card that was linked with Public; but if there is @Timer provided the messaging method to contact CSA about it.
It is interesting, though, that you do not receive an error when you try to reset your password. So, you were able to receive a reset email when you performed the 'Forgot Email' function?
That seems to be a faulty process. If there was no My Account to reset a password, it should at least prompt with an error message saying something like no account to reset the email on, or something like that.
