Urban Company — ac service damage the ac

Address:

914, plot no 7 block B, Ashok Vihar phase 3 extension

I booked for ac servicing on urban company for 3 acs, and the serviceman mishandle one of my ac and after few days my ac stop cooling, i called the samsung and there serviceman told me that this might be due to mishandling of the outdoor unit which causes the gas leakage, i called the urban company people again and the same person visited again on 10th june and he checked the unit and ask me to pay for fixing the gas leak, which i declined and instead post a complaint on different portals such as facebook since. They don't have proper customer readdress portal, but still there is no fix provided by them.