Discussed at the service which I received from FNB

I purchased smart devise's from FNB online in March 2015, 1 of the products went back in for repairs more than 3 times, at one point the devise was in for repairs for more than a month, only to be returned unrepaired, devise was frozen, then came back no fault found. I did a complaint via FNB website and no response, the company Let Me repair accused me of all sorts of things, the best one reported to fnb that I burnt my own devise, when I send the devise in for heating up. FNB has not responded to me since 21.09.15. got a call 2 weeks ago from Let me Repair this time reporting that a brand new devise was issued to my husband, I asked for proof of husband's name and delivery address and no response to date. I have all email correspondence to FNB and Let me repair, FNB has never made contact with me telephonically even after requesting a manager or someone to call me. I have requested also via email that LET ME REPAIR NOT call me as they just accuse me of all sorts of stuff.