If you received an error it usually is suggested to put the sim in a phone to see if anything works. Unfortunately you're not able to as you're waiting for your phone to arrive ( unless you have an old phone that you can try it in)
Secondly most signup with a credit card and they're asked to check if they were charged or not through their bank. In this case you used a voucher. Not sure if you're able to check a vouchers balance / or if it been used or not.
Lastly we would also ask for you to check if your self serve account was successfully created. If you were able to log in or not. If you were it would tell you if the account was active. If not try to create the self serve account again. However this is not possible at this time as Public Mobile is currently conducting maintenance.
So. Do you have another phone lying around that you can test your sim card in??
Also what is the new phone you're getting? To ensure it has the proper Public Mobile frequency for use.
