Cell C Poor Service

A new Sony Z2 was sent in for a battery failure on the 6th April 2015. I was told it can take up to 7 -21 working days for a repair. ( Ref.: *** ). Two day later another reference.: ( RMA *** ) came my way and still no proper feedback. After a week I phoned to find out about the progress of the repair, just to be told that my phone has been sent to the supplier. A week later I called again, once again my phone was sent back because the phone did not pass a Cell C quality check. Now, this week still no phone. Apparently now I can have a new phone but have to wait another 24 - 72 hours for some process. That is pushing my time line for not having a phone to 6 weeks. WHY SHOULD I KEEP ON PHONING FOR AN UPDATE? I requested for a complete contract cancellation but I just keep on being transferred from department to department. I got billed for April for a service but have NO phone! Amazing how they can take your money and give you nothing in return. THIS IS THE WORST CUSTOMER SERVICE I HAVE EVER RECEIVED IN MY LIFE. On writing this I am still waiting for someone to call me.