Return policy Nonexistent

I paid my account without question, if the network is down, calls are not going though or messages hangs in cyber space I accept it as the way Vodacom network works. Never complaining, has a clean record for 15 years at Vodacom, but don't dare to once question their policy. Their so-called verbal policy that you can return a faulty phone in 7 days and you will receive a new one is total nonsense. Their policy is, yes bring it back, but then they will 1st sent it away to check whose fault it was that the item is broken, if established yes, their is a fault and they cannot assign blame to you, the item is sent for repairs. I up graded to a Sony m4, did a sim swap, had to wait for the sim to be activated. Next day took it to a Vodacom shop in town, there it was established, by the Vodacom worker that the memory slot is faulty. Took it back the next day to original Vodacom shop Tygervalley the phone was inspected by their technical person, yes memory slot is faulty. Leave the phone at them, receive a message phone is sent for repairs. I am paying for a new phone not repaired second hand one. Where is the 7 day return policy, falls advertising yes, pathetic service absolutely.