vodacom repair shop canal walk

Hi

i took my phone in for repairs on the 06/06/2018 and was told to pick it up on the 16/06/2018, after recieving my device, i asked if i should put my sim in the phone to test, i was assured that the phone was tested and there was no need to test it. So after returning home and inserting my sim in the phone displayed no signal. At this point i tried to call the repair shop, ive been trying to get hold of the vodacom repair shop in canal walk on ********** 200 for 2days and i wait for 15mins each time and then the call drops. Im not sure if this is only a setting or if i should go into the shop again. i cant keep on driving up to canal walk for this.

It is frustrating that i cant get hold of anyone when calling in.