No connectivity

I took out a new phone contract with Telkom beginning of November and when I took it out, connectivity at home was not assessed and no one even bothered to check if I have connectivity. Turns out I don’t have connectivity, the best I can get is Edge and gprs on Telkom and MTN 2G. You can imagine my frustration trying to use my iPhone on these slow networks. I went to the store where I bought it and told them I need to cancel the contract because I can’t use the service. They agreed that because connectivity was not checked, I can cancel without penalties because had I known I can only acces telkom Edge or GPRS I was not going to take the contract. They said the network division will be in touch within 72 hours but now over a week later I’m still waiting. Please cancel my contract Telkom!