Chetana Chits Haveri Pvt Ltd - Chit amount not returned

Dear Sir/Mam,
In the month of February **** I approached the chit fund group for investment through the Kyepot app on android store. I got myself enrolled for the one of the many groups they have . The group name was PIGGY BANK *.*L after which I started paying the regular installments as per the contract agreement. I placed my bid and won it in the last cycle ie. in the month of April **** after which as per their agreement they were suppose to disburse the prize money with a weeks time after the deduction of some charges. Final amount to be received was *,**,*** INR. Out of which I received * Lakh and remaining *,***** they are indefinitely delaying. Even after continuous following, I have not received the promised amount and has been given invalid reasons of not having money to be paid. I am attaching the contract document and the bank statement with the amount paid regularly to their mentioned account. Request you to kindly look into it and help in recovery of the amount. Thanks.