Bad service, no feedback,

On 30 june 2015 i cancelled all services at Middelburg Telkom store( in that i only had a adsl line) after i paid a R700 deposit. Until now my services has not been cancelled and they keep on billing me i phone and phone and all of them keeps ons saying they will sort it out but with no avail! im fed up and at this point i will pay all the outstanding as long as you cancel everything, I spoke to the lady at the telkom middelburg store as well as a call centre lady both confirmed that my account is current R975 and that i can pay R275 and the deposit can be used for outstanding. I did this when i phone again to confirm everything they tell me sorry they cant use the deposit they are keeping this until i pay my full amount then theh will pay it back? yeah right!!!! its my money whats the difference between paying it back and using to pay outstanding?? how difficult is it to cancel my line??? How do you say my adsl line is cancelled but you give me normal telephone line?? i dont have a telephone??? no calls have ever been made on it?? doesnt this mean something??? And then when you ask to speak to a manager they are to busy!!!!