Game refusing to acknowledge my Warranty

i bought a Lenovo external Hard disk last year during the cyber monday special at Game store in Boulders Midrand , sometime in may the External harddisk just stopped working, i took to the store for then to either repair or replace, i could not find my receipt, i but i went there with my bank statement showing the line item for the purchase, this after i had called their national call center and had been told that ,that was all i needed, the consultant at the store collected my bank statement and said the Hq has to search for their copy of the receipt before they could accept my hdd, that has been the line they have continuously given me for the last few months , they came back and said they cant find it, then they said they are searching still. i think it is just a run around to not Honor the warranty on the product, i have called both the store and the national office severally. same story. the lady at the store has tried to get in touch with the HQ, so many times and she is also being given the runaround. the warranty is almost over now, which is what i think they are waiting for.

CAN ANYONE AT GAME HQ help.