3G/GPRS Disconnection

I cancelled my contract on the 22/06/2015 with MTN during the time when there were strike. I was told that my contract will not be cancelled now since the Contact Centre was on strike and I will still be on contract. On the 13/07/2015 I decided to do a data upgrade at MTN K90 Mall and was assisted by Thami. The data was loaded on the 21/07/2015 and my 3G/GPRS was disconnected until today. I cannot make calls, cannot send sms' and cannot browse internet. I can only receive call. My phone is useless now because of MTN.The contact centre is seeing my number registered as a prepaid. I am waiting in limbo now cause I was told by Thami that he also does not know how long this will take to get my 3G back. This is pathetic cause is costing me heavily in running my business.