Mobikwik App - Amount Hold by Mobikwik without my consent

There was a scheme provided by Mobikwik company where we can add the money in Extra and Mobikwik was giving payment interest on that. At the initial it was very smooth just like any other financial institute. After that when i login in September-**** , i got a notification that rules are changed now and i can't withdraw my money. My money was invested by Mobikwik app to the lender and whenever the lender pay back to the app, i shall receive my amount in bits and pieces. Here the point that to be noted is , this was my money that i have invested to the mobikwik with the belief that whenever is needed i can withdrawal my full amount and without my consent how can any financial institute can invest my hard work money for their own profile. Here i would request for my full amount refund along with the penalty from mobikwik for such action.