Poor repair turn around time

I handed a device in for repairs on the 15th of March 2016. Up to date I have had no correspondence on where in the repair process my device is. I have tried to contact the branch on the following dates on several occasions: 31/03 (1 time), 01/04 (7), 04/04 (2), 05/04 (4), 06/04 (3). I have tried to speak to someone online, but after +- 1 hour I had to leave my computer. I have spoken to the call centre who can't assist me, one lady provided me with a number for repairs but does not work ***, the other sent a message to repairs to contact me 01/04. It is difficult to go to the branch, why is there no update system to keep the client in the loop. Telkom Mobile should learn from Vodacom.