No service !!

On 15th Dec I logged a complaint at La Lucia mall Durban for the following issues: no network or data coverage at my residential address. In Mid Jan I had to contact Cell C myself to follow up on the issue. I was told an engineer would set up an appointment at my residential address within the week?? At the end of Jan I had to contact Cell C support again and was told that en engineer had tried to make a few changes to the mast in my area? Still no improvement? 7 WEEKS LATER I am still waiting for an appointment to be set up at my residential address. The service from Cell C has been very poor and the network and data coverage in my area (where Cell C state on their website that THERE IS Coverage) is still not existent. I am very disgruntled and wish to cancel my contract. Support ref no ***.