DATA REMOVED FROM CONTRACT

I received a call from Vodacom, on the 5 September to migrate my account as it would be more cost effective. They advised me that my data and airtime would not expire and would be carried forward every month. On the 1 October when the migration kicked, I realised that they took away my data and changed my contract to only receiving airtime which is not what they advised me. All my data that I had disappeared. That is not what the call centre agent advised. I called the call centre only to be transferred to another call centre and then given another number to call. I called that number only to be told to call another number. When I finally got to the right department and I requested that my contract be put to what it was I was told to wait 3 working days before some one will come back to me. I am angry and annoyed with the false advertising from the migration department. They should be more clear with what they are selling and explain exactly what it is that they are selling. The service from Vodacom is disappointing and it is unacceptable.