Zomato — I received food with cockroach in it

I ordered food from zomato last night for party at home, but when i got food there was a cockroach in that, i complained for that in zomato and the restaurant but they only giving money back and that also in their wallet.
I need a proper compensation so they will know how to treat any customer and how to maintain proper hygiene.
I want a heavy compensation to treat these online portal and these lazy restaurant.