Mobikwik — unjustified conditions of super cash

Mobikwik allowed me to earn more than 3000 supercash in a month.
And later they limited the use of supercash to 1000 a month.
So in march month, i earned 3000 supercash. Prioer to march, my supercash balance was 1000.
So even if tried to utilize the maximum supercash, i can burn maximum of 3000 in 3 months.
So my march supercash (~3000) is expiring on 1st june, and i cannot utilize it even if i want.

They send me an sms saying my supercash is expiring and i can extend its validity by adding 10 rs using code "extendsc".

But this code is not working.

How can you make such rules that are mathematical and logically unjustified.
Or may be intentions of mobikwik is clear, to make fool of their customers.

They even run an offer of 100% cashback for hotel booking upto 5000 rs.
Now if a person earns a supercash of 5000 rs then he can at max utilize 3000 rs in next 3 months and after that it will expire.
So its sure shot that he will loose atleast 2000 supercash.

So its a clear case of fraud from mobikiwk side.