Poor service and a faulty product.

Cash crusaders wonderpark have a very bad customer we bought a new phone there it had a battery fault and network issues we returned the phone there we could not be assisted because we did not have a box for the phone, my wife went home to look for the box i had to go because i was going on holiday for a week. When my wife got home she found out that she misplaced the box she went back there to opt for them to atleast buy the phone since its their product the refused and she had to stay home with the phone thats not working, after a week when i came back i took the phone back there the guys i got there was very rude as well. he took the phone phone and booked it for repairs i was told the phone will be back from repairs after 21 days.. we have been waiting for the phone after the 21 days my wife went there to collect the phone when she got there the phone was not there she was told some1 took it by mistake, she was told to come the following week on monday she did not go there on monday because she was working.. yesterday i went there to collect the phone when i got there the phone was not there still.. no 1 is able to tell me whats happening exactly its been a moth since we bought a phone but we do not have it and they can not help us at all we asked for our money back since we bought a new phone somewhere but we can not be assisted the staff and management there are very rude and not helpful we wrote their head office yesterday but no 1 is gettibg back to us.