Onida / Mirc Electronics — Washing machine-Poor Service on newly bought product(Defective)

Hi,
I purchased Onida washing machine from flipmart in the month of November.We have observed that after washing the clothes the threads are coming out and spoiling the clothes.I have raised a complaint in december and they sent a technician, and he kept complaining that our clothes were not proper.I kept calling him again and again, he washed a cloth in the machine by himself and finally said the product has to be replaced(dust collecter).They have not even updated that they sent for product replacement.When I kept calling again, about the status, then they informed it is sent for replacement.
Till the new product comes they asked to wash clothes removing the dust collecter.Still we are facing the issue and the product is not replaced .I called the consumer care again and asked to send a better technician to diagnose the problem, but they sent the same person again and he was rude saying, please keep quiet till the product comes...

I am really feeling so bad why I bought the product from this Company.I think they have sent a faulty machine.