MY PHONE IT`S STIILL UNDER WARRANTY

Good day,<br> <br> I bought a cell phone online at MTN direct in July and after two weeks it went blank and i took it at a repair center in Midrand ..<br> It took them a month two replace the phone and they gave me a new phone same model in September after fighting with them ,last week this new phone does the same thing I do the same procedure that i did last time but to my surprise this morning i call the repair center to find out what is happening and this lady tells me that they can`t fix my phone it`s beyond repair and i must collect it and pay R330.00 for assessment..<br> I decide to call MTN direct i spoke to a guy by the name of Marc Sanders he says he can`t help me and i am incriminating him by asking him how is it possible that i am customer who is asking for assistance because i am paying for that phone and tells me he can`t assist me ..<br> The phone is not even 6 months..