Samsung India — microwave oven

Address:

Mumbai City, Maharashtra, 400065

So i purchased a microwave oven in oct 2016 and today (Sep2018) the service center guy comes & tells me the motherboard is spoiled & it needs to be replaced for 4000/- wow... Great quality... So u expect a customer to purchase a pdt for 15k and every 2 yrs cox of some quality problem of samsung replace parts worth 4k and that too a motherboard getting spoilt? Wow... So then ali calls me from headoffice to not help or support bt to give me some more knowledge abt hw he uses products (Am i even interested in whats going on in someone else house?) and there is no sign of help. He tells me ur warranty is over my question is this is not a hand made problem, not a usage problem, then y am i asked for a huge amount for this?... I want this motherboard replaced by samsung with the minimum charges.. I am not paying 4000 bucks for a quality issue of samsung... Assign this to the right person or i may have to file a complaint in the consumer cell. Thanks and awaiting your positive reply