Refund Requested - Consumer Protection Act

Bought this tablet 2/02/15 at exact I used it for a month then the phone went blank, I took it to the store, they send it for repairs they sent me an sms with the amount of R560 and ref no 16157 which I paid on the 28/05/15. I received the phone in the middle of june 2015. The first week of july 2015 the phone did the very same thing,I again took it to the store and was told the same thing that im going to pay again for same problem which they said was the LCD. Then I called future mobile technology and spoke to Khanya she told me that I will have pay again for repairs I explained to her that the phone gave me the same problem twice within 6 months and I feel its unfair. Last week they send me an sms again for the amount of R700 ref 19158 for the same problem. I called again and spoke to her she said she call me back the next day she will ask the head technician to call me but since this day I haven't receive a call from them.<br> They replaced the tablet with a new one on the 28 August 2015, in December 2015 the tablet started to get very warm it couldn't be touched and it wiped all my contacts as well. I emailed them again and they phoned me saying the don't do refunds.