unreliable and poor costume service

I bought a phone at CNA midrand boulderson the 04 October 2015 then discovered that it wasn't reading the memory card so I took it back to the shop October 12, they took it and told me that they will call to let me know when its back from the repair center but they never did every week I would go to the shop to find out but leave the shop without it but just a word from the manager saying she will do the follow up<br> 06 November asked them to give back my phone without being repaired and the store manager promise me that she would call me Monday the 9th to collect it but she never did, I've been stuck in joburg for two months waiting for my phone to come back <br> 05 December i went back to the shop but still getting the same respond that my phone is not yet back and they will call to let me know when to come and Collet it she also made some excuse about her personal life <br> <br> I'm not happy at all with their costume service at CNA and I just want my phone back