Telkom Pathetic service

In March this year we were approached by a technician from telkom to install a new wireless landline phone which he convinced my parents to change to. He installed the phone and instructed them that we have been a R199 contract and left. My parents then went to telkom and asked them what the R199 contract was they said 3000 telkom to telkom minutes and 2 gigs of data. So from April we started being billed R500 when we queried it they said charges and more charges. Then we complained about the poor connection on the new phone and told them that we could not hear the other party on the phone they then told us to buy a cell phone and use the telkom sim in the cellphone and we are paying for this **** service. Now we sit with a R1161.00 bill because we were told that we were buying data from the landline phone but they could not prove that we were buying data. How is this possible that you are on a R199 contract but being billed R500 a month. We were constantly being given the run around. The customer service is very unhelpful and at the end of the call they ask you is there anything else that they can help you with when the failed to help you in the first place. It is shocking how bad and poor the telkom service has gotten. Absolutely pathetic. Please make sure that you are sure if what product they are selling you before you commit.