Lenovo — Lenovo k3 note mobile handset

Address:

400092

I had purchased lenovo k3 note in aug, 2016. Which is in warranty but since may, 2016 company have replaced 2 time mother board & 1 time smart pad.Inspite of mother board been replaced still i am my issue is the same i. E. 3rd time again mother board is been dead.Including original mother board total 3 mother board are defective & lenovo service center forcing me to expect my hand set with 4 replace mother board.
I here by ask company to replace their so called highly defective hand set with good quality hand set.