Ola Money - Zipcash — Close Ola postpaid accoint

I am not getting any respose when i mailed at [protected]@zipcash.in from [protected]@hotmail.com

please close my ola money postpaid (link with number [protected]), there is some unknown transaction happening every month which I didn't approved of. so please close the account, I have already payed all my dues (basically I paid something for the purchase that I didn't do) .