Ajio — Not able to cancel product for an prepaid order

Website: www.ajio.com

I have placed ordered with Ajio I'm not able to cancel the order due to there system error I called multiple times to their customer care they said the order is in process or getting shipped you will get your order soon you can refuse at the time of delivery but the order is not getting cancelled nor it's getting shipped as It was pre-paid order I'm stuck I'm not getting refund same thing happened with another order today I'm fed up calling & emailing them even after complaint's no resolution is made really disappointed