Toshiba India — Complaint regarding led television - replacement of motherboard

Address:

Kolkata, West Bengal, 700152

I had purchased toshiba 32 inch led tv model no: 32pt200ze with 3 years warranty.
Date of purchase: 18 jan 2014.
After 1.5 years, due to an issue in the led panel, it was replaced with led tv model no: 32l5400ze.
Now, the new set that i received is facing another issue and it was diagnosed as a problem with the motherboard which needed replacement.
The process of replacement of the motherboard is taking an unusually long time (more than 1 month) and i am being harassed regularly by the service centre team who keep on telling me that the motherboard has not arrived.
Sr no: tiplsr6h0013336.