Swiggy — cancellation

Address:

Chennai, Tamil Nadu, 600094

I wanted to cancel my order placed in swiggy for rs 835, within 5 mins of ordering when contacted the customer care via chat they said i would have to pay the whole 835 as per cancellation fees.
The firm charging for the whole fees of the order that too 835 is really disturbing and is unfair. Even if a minimum would have been charged it would have seemed fine but certainly not the full amount.
I will have to pay the whole amount as for cancellation, it surely looks like christmas for swiggy but certainly not for me.