Swiggy — I am complaining about incorrect billing

We have been deceived in an order made for 7 roti and 1 curry, but however been delivered with 6 curries and 7 Roti. The order was incorrectly taken and billed and we been charged INR 2820 instead of INR 640.
We need the full refund because of the order is incorrect as we never placed that order and it was delayed by 1 and half hour. This is absurd and ridiculous and such a bad situation created by Swiggy. We wanted to raise the complaint to the highest level to get this sorted.