Ajio — Order unable to cancel

Website: Ajio

This product was Added up mistakenly. After placing my order then only I get to know that an extra pant is added ...then i tried to cancel but I'm getting the error as showed and still it is in my orders list. still it's not cancelled. I tried raising complaint but getting some technical error there too .I'm unable to cancel my order. Please cancel this order.
I ordered yesterday night and also attempted many times to cancel ..but even now the order is not cancelled throwing an error and it is still showing status as ready to dispatch.please cancel the order take some steps immediately. I'm so much worried about this.