NO AFTERSALES SERVICE

A month ago, I upgraded my cell phone device as per my contract with Vodacom. I got a Samsung Galaxy S6 and my contract per month is close to R1000. The phone after walking out started to freeze but thought nothing of it until it became intolerable so I took it back 3 days later. They booked it in as an OBF. 1 week later I get a call from them saying that the OBF has been rejected as \there is nothing wrong with the phone". They then sent it to Samsung to be checked. They in turn also rejected the OBF. The apparently did a software update and gave it back to me. Needless to say as I got back to the office"