invalid mobile recharge pin

Location/place: delhi/ncr

Name of company/service: oxicash

I have bought 100 rs. mobile recharge pin through oxicash website. oxicash web generate mobile pin. but this mobile pin is not valid. I requested to refund my money for invalid recharge pin. But they are not refunding my money.
Idea Mobile Number(#8750786336)
please help me.

dhiraj kumar
contact no. 9899195519

oxicash company address
Himanshu Sharma
Customer Resolution |Oxigen
Oxigen Services India Pvt Ltd
264, Udyog Vihar, Phase 1, Gurgaon, Haryana – 122016
website:
http://www.oxicash.in/Recharge/MobileFlexiRecharge.aspx
phone no. 01246773377