Faulty Brand New Phone- Microsoft Lumia 532

I am deeply disgusted and disappointed by the service received from Cell C, this is after my number was ported from Vodacom. On Saturday July 27, 2015 I bought a new contact phone a Microsoft Lumia 532 phone. On the very same day I received the new phone, it was apparent that it was faulty, it was extremely slow, and it froze, over-heated and depleted the battery. I then took it back to Cell C on the very next day where it was scrutinized and confirmed that it was faulty. I was then told that it will be taken in for repairs. Repairs!!!! A brand New PHONE taken for repairs!!! It was like a joke!! I don't want that phone anymore! I told the Manager that I don't want the Microsoft 532 phone anymore and would like a phone of the same value. Anyway, the phone was sent back to River Side Cell C store in Centurion with the message that no fault was found. Even the Cell C staff were dumbfound after they initially actually checked and confirmed that the phone was indeed faulty. It has been 2 months already and still I don't have a phone! Is this what I ported my number for???