TV not working in less than a month

Went to the morkels store on maponya mall, got the sansui 50 inch led TV which was working fine for the first 3 weeks however it stopped working and I reported it to them but it's now been over 4 weeks and I'm still waiting for a new TV or at least have the decency to fetch this one for repairs and bear in mind they debit my account no questions asked and they also made me sign insurance which I do not see the reason why I should cause I'm not reaping the benefit of it.<br> When I go to store to inquire they literally kick me out ,now they don't even puck up my calls.<br> <br> When I call the JDG customer service line their systems are always and forever down so they can't help me.<br> <br> I'm stuck now with this faulty t I don't know what to do with it or where to take it.<br> <br> Please help me,cause now my last option is to now cancel the debit order and rather let them blacklist me cause I can't keep paying for something I'm not using