cellphone not being repaired

I bought a cellphone at Donna Claire in Eastgate on the 9th of October 2015. after a few weeks the I'd take photos and they would not save any of my pictures. on the 14th of January i took it to Donna Claire for repairs. When i got there i spoke to their consultant Nontando who said she will take the phone through for repairs and i will have the phone by the the 13th of January. I went on the 13th only to be told then that ill have to wait 3 weeks...but this was after Nontando **** about when i had sent the phone it to her manager.<br> Now im being told my phone cannot be fixed because i had a vodacom sim card in there but this is a dual sim card phone so i didnt see a problem with using two different sim cards. had i been told i would've done otherwise. They never call back when they promise to. This phone has a warranty and they tell me they cant fix it cause it doesn't have a problem, im sure i wouldnt say my phone doesnt work when it does.<br> This is terrible service from Donna claire ...buying a phone isnt cheap and now not having it for close to two weeks 'cause they took it to Samsung is also *******...i have no other phone in the meantine and im told they cant fix iot