I feel your pain. My situation is exactly the same. Everything worked until it didn't. I can text and receive texts but cannot call or receive calls because of the "long distance add-on" recording. My package includes this but I still cannot receive or place calls. The Moderator emailed me Wednesday of last week. I replied the following day and this is Wednesday of a new week with no reply back. I'm not sure Public Mobile is worth the cheaper bills when you have issues like this that can't be fixed in a timely manner.
Are you saying the moderator never replied back after you completed the verification? I really think you need to message them again and let them know you've been waiting all this time for a fix to your issue.
Just one other thing (if you haven't already done so) is to top up your account with $1 or $2 and reboot phone. Sometimes this will reset the account. Obviously ignore this if you've already tried it.