Stay away from Telkom contracts!

I took a new contract with Telkom dealer Mondo, the contract is still new but am already experiencing problems. I received a phone, the sim slot was faulty and it has been collected for repair. After that i recieved an sms from Telkom saying my first invoice will be higher than what i have signed for. The sim card is still not activated, the phone is faulty but they are already reminding me about billing and payment. I tried to phone Mondo, i was put on hold forever. I would like to advise everyone out there not to enter into any contract with Mondo Telkom. I just want to cancel the damn contract but Telkom mondo is not reachable.