Very poor reception-want to downgrade

AI*** / PK25202 - ***, Duttco Parts (Pty) Ltd .I took out a cell contract in April 2015.Rec my phone and got activated after 2 days.Found 8ta reception very poor.I sent telkom a mail to cancel this contract bec of the poor reception.I got a call from TMBusi and then from sam who said that i can downgrade after 6 months.From August2015. i have been trying to downgrade but the call centre said that i must go into a Telkom shop to do that.I have been to Telkom and they said they are a franchise and that i must go to a Telkom Direct shop which i did At Canal Walk.I spoke to Keegen and he said that he cannot help bec it was taken from the call centre.He said that he would not be able to even call up the details on his system.he said that i must call 081180 for help and they charge R800 to downgrade.I am paying a lot for this business contract and its not working for me.I was at the Wild coast recently and i had to put my phone away bec there was no reception.Telkoms service is getting bad to worse.You cannot get through 08180.You constantly kept on hold for long periods of time.Very frustrated now.can someone help.i am not prepared to pay the R800 because if the reception was