Usha — Which got worse within 3 months

I would like to say that I am trying continuous since from 30 day to call their customer care but I did not get any response from there then I spoke to amazon customer care twice because I bought this product from Amazon On which I would like to tell that today I have spoken to him and he is so rude, arrogant and unprofessional, he has given me a date within 12 days were they themselves do not know when their technician will come and on which slot will they come on which date, will I leave my work n stay at home for 12 days and keep waiting for them