HP India — Not received hp s6500 bluetooth speaker - back to college offer

Address:

Bangalore, Karnataka, 560068

I purchased a hp laptop in august along with the back to college offer. Out of the 4 items that i selected i got three but did not receive hp s6500 bluetooth speaker. It has been two months, still not hearing from them. I have raised a complaint in hp redemption center also. There also i am not getting any answer.

So please look into this, as this is kind of trickery from hp to extract extra money from customers without fulfilling their gift promise.