DSTV is sabotaging me

I received a call from dstv a few weeks ago offering me an insurance on my decoder which I declined then to my surprise a week ago an error message popped up saying that the hard drive is ******* and should format the decoder or my device will function without the pvr functions. I selected format and erased all my recordings which was fine. Then again on Friday the 31st of May the same message popped up and we again formatted the device and all recordings got erased once again. Monday the 3rd of June the device popped up a red button saying disc full. I phoned and spoke to a lady whom I do not recall her name. She advised me that I needed to reboot the device for 15min then put it back on. I advised her that I feel as if I’m being sabotaged and she said I am not then I asked why wasn’t I offered the insurance 2 years ago and she said she doesn’t know however some employees at dstv do not give full advice and if it were her who assisted me she would’ve advised me to get insurance but the device was under warranty, I found that completely irrelevant because it gave me an impression of the level of service from dstv is not the same and those who are training are not fully equipped to service clients. Even after rebooting the device it kept saying it will function without the pvr functions. I phoned again but still no change. The second lady I spoke to said I should visit the nearest dstv station to fix it which I am not happy with as I feel they deliberately *******ed my hard drive.