Mobikwik — Unable to login, did not get cashback as well

I have written many times regarding the same but not getting any proper reply.ticket#2819943 I am unable to login into mobikwik.I have alreay tries with forgot password option.They use to send one link on mail to reset password but whenever i click on that link(within 2min), it always shows that it has been expired.I tried this option many times on different day, different time.They always reply to try reset password option even I have already mentioned that this is not working second thing, I have used this site many times, they offer cashback but they don't give.At this time, you don't need password, you can login by otp