There is a complicated method of increasing rewards on one’s credit card by purchasing reloadable gift cards but without actually purchasing real items. Is this permissible? There is also a way to send money back and forth to a friend using a credit card and also increasing ones rewards points. Is this permissible?
It is not permitted to increase one’s reward by performing transactions that clearly undermine the principles underlying the reward.
We have written about this in the past concerning such issues as manipulation of a store’s return policy (here), air miles, and so on, and the same idea will apply here.