Zomato — delivery wrong and money have to be refunded and miss behaviour

Address:

Chennai, Tamil Nadu

The delivered food was completely different from orders food... Delivered food doesn't even cost the half of ordered... Complete loss of money...
And delivery boy misbehaving.. Rude attitude... The money have to be refunded... We are students... And can't withstand such activities of these online companies...
I have mailed zomato twice and no reply even after 48 hours...
Is this the way delivery boy talk to the customer... Asked the delivery boy to take back the food and he answered to throw away...