Pathetic customer service

My prepaid number was ported from cell c to Mtn without my authorization, with great difficulty after going back and forth with both networks over the phone I managed to reverse the port. Now the problem I have is the airtime and data that I had on my number is lost and both the networks are of no help all they can do is apologize and say there is nothing they can do which to me is utter nonsense I have been on the cell c network for years and to be told there is nothing they can do to help is a slap on the face that I will never forget.... Cell c does not value their customers and I'm sorry but I would never recommend url to anyone and I will be moving to another service provider all I can say is cell c are *******