@KWAN, your statement should tell you the date of that charge. If it was before April, then it is a valid charge, as you were still using your Public Mobile service.
If the date is after April 1, then you will need to figure out when your port completed (if you’re still using the same phone number) as the account needed to be active to allow the number to be transferred to your new provider.
If you didn’t port your number out, then the account is still active, and you will need to log in to Self Serve, and remove your payment issue from the system. Unfortunately, this will not give you a refund, as it was your mistake (if this is the case).
i hope you get this settled as quickly as possible.
