Payback.in — Reward points

Website:

www.payback.in

Hi i have tried to use my payback points on ebay .During checkout i clicked on payback points reedem option .My points consumed but site crashed and my order not place.I have asked payback customer care .They issued me a complaint number twice but till now my point yet not refunded.
My complaint number is 9962747.This is second time complaint number generated by them. First time it was 9900125.
I have talked to them so many times but no resolution provided