BAD CUSTOMER SERVICE

We upgrade,on 15 August 2015, received a Nokia Lumia 535 RM-1089 MTN ZA phone. DID NOT RECEIVED ANY DOCUMENTATIONS, OR COPIES OF SIGN AGREEMENTS. Went back to store on Sunday 23 August complaining that the handsets faulty. Need to charge every day sometimes twice a day and that the handsets automatically reboot. being told we must checked during the week and if still the same must bring it back. On Thursday 27 August 2015 went back this time we were told to dial 1555, At home we dial 1555 and was told nothing wrong with software and that we must go back to store to check if all apps has being downloaded. On Saturday we went back to store and was told the handset needs to be send for repair. And that we have to pay a R 300, for repair, we told them no we not paying it, afterwards they said is fine we is still on warranty we don't need to pay but we need to sign that if there was any damage handset they will charge us R 300 to repair. We told them we complained several time with no satisfaction. Now we don't have a handset. for +/- 2 weeks and don't have the use of our upgrade since !5 August 2015. First the manager not available and then no number or email address of Head office.