Hp — Back to college offer (not receiving offer benefits weather last date has already gone)

Address:	Durg, Chhattisgarh
Website:	hpredemption

I have purchased a new hp notebook (Hp notebook 15-ay025tu).
Purchase date - 09 aug 16,
Product name hp 14/15 ac/af/am/ay series (Core i3/i5/i7 with windows),
Product model hp notebook 15ay025tu
Product serial no cnd61969f6 product part no w6t39pa

On this i have choose a back to college (Btc college) offer worth rupees 1499. I have done my payment and i already a get half of benefits that is (1 year insurance and 1 year mis subscription) but now i have a problem the last due date has already on at 16th sept. And my pending benefits are not claimed by me that is (Hp h2800 wired headset) and (Hp h2800 wired
Headset).
Please get me my offer benefits as soon as possible.
Take a quick response.