If your Freedom Mobile service was still active when you requested Public Mobile to transfer in the phone number, the Freedom customer service is likely correct in that your number has been released by them to Public.
When calling your number, do you get the Freedom younger generation-style error message saying "The number doesn't exist" in a young female voice or do you here the more "robotic" and business-like message of "The number you are calling is not in service"? This will give a clue where calls to this number are being routed. The first type of message would indicate the number being still at Freedom, but the second type of message would indicated Public having it.
I suspect the problem is on Public's end. While Freedom doesn't have a good network (in my opinion), their back-end systems generally work. I believe that Public Mobile has far more "glitches" when it comes to activation, billing, and number porting.
Unfortunately, you are at the mercy of the moderators. They are the only ones who can get this fixed for you. While Freedom Mobile customer service may be able to give you a status update about any outgoing porting request, once their system says the number has gone to another carrier, there isn't anything they can actually do for you. And, as far as Freedom is concerned, you're not even a customer any more, although I'm sure they would hope to get you back in the future. It's up to the carrier that you end up at to provide customer service for number porting issues.
