I had bought an IFB washing machine in 20/11/18 wi...

I had bought an IFB washing machine in 20/11/18 with a four year warranty.I was so disappointed with the technicians who came from Neo services.They were trying to change a part and were charging me Rs 2800.After a lot of negotiation they reduced it to 50%.The worst part is they were trying to change it with an old rusted part.I insisted I wanted to see if the part was new,to which both were a little hesitant and said they must have forgotten it.A few minutes later they show me a packet with burnt edges showing it was tampered and the inside was rusted.I am so disappointed with IFB.Never expected cheaters.I insisted on keeping the piece and I m going to complain about this.Please insist on checking the parts before they change it.