VERY BAD NETWORK ISSUES AND NO CHANGE FOR A WEEK

This is a complaint about persistent network problems most especially in my area Bryanston Ext. 3. I had network issues like two months ago in Bryanston and also Midrand and I complained until it eventually got better but since last week thursday, 29 October 2015, the problem has started again but only in my area Bryanston Ext 3, as soon as I park my car the network coverage vanishes. I have lost count of the number of times I have contacted Cell c and until now I am waiting for a so-called technician to call me and come to my area. This is extremely and utterly frustrating as no one can get a hold of me, the phone basically becomes useless. If I had the money right now I would cancel my contract with immediate effect. I have never had such an experience with a network. From where I am sitting, I am a very unhappy customer. I will not say more lest I allow my emotions to get the better of me. I really hope my challenge will be resolved soonest!!