Today I have a new issue with mobikwik, tommarow I got a pop up with msg that update your KYC and get 100 supercash in your wallet and use KYC100 as a promocode. So I done like they said, and I checked my promo is valid. But still I did not get 100 supercash. So I raise a ticket against my query, they reply after 24 hours and said your promo is not applied. And denied to give cash back.
So my first opinion is not to use it for cash back, because they did not give it.
And second uses of super cash is very difficult always you lost your supercash due to valid period.