Telkom repairs/servicing

Good Day<br> <br> I am here to complain about Telkom mobile services , I have a cell phone contract with them ,i took the device this year on the following date: 10 March 2015 and that device its still under warranty that device is always giving me problem after problem, i have three months without using that phone but am paying them each and every months , i even ask them to change the device for me because the device is always gives me problem and they have refused that they said we will book your device for repairs again and remember once they take the device it take 18-to 21 working days i have returned the device for four times and now they have returned that device with that problem of Audio, i HAVE RETURNED THE DEVICE TO TELKOM DIRECT STORE HATFIELD IN PRETORIA, THE CONTACT NUMBER FOR THEM IS *** FAX *** ADDRESS: SHOP 28, GROUND FLOOR, HATFIELD PLAZA,