Panasonic - AC repair

My AC was not cooling gas leak.. I call Panasonic service center man Rohan.. He came see my AC and told me gas leak. He will send this boy to fix next day depak he man come fix the AC. He jjust check pipe and titen nut and fell Gas.. He charge me **** which he not give bill. I call Rohan told told that I paying Cash**** .he told OK. Same day all gas leak. I call Rohan. He told me he will send Depak. Next day Depak come to my house. He removed nut and brazie one pipe. My AC body got burn. Same night all gas leak. I call Rohan sevice manager told him everything. He told me he make sure Depak come fix the problem. Next he he removed onther nut and brazi the pipe. .some all gas leak.. I call Rohan told him. He told fix the problem. He never send any to house or answer my call or reply my message. I call center of Panasonic. Complain.. They give Pandit Patil number who who takecare of goa
. I told him everything. He told me he will get back to me. But not. I call him he never answered my calls or reply message. Then I call center they give main head of goa shravan pawar. I call him and told everything. He told me he will take care. Same night Patil and Rohan Hatkar call me. Told me they will fix next day morning. No one has come fix the problem. I call both of them no one answer my phone or reply my message. I call shravan pawar. He told them. They fix the problem. Still no one as .my AC is not more than ** day. I callin everday. Nothing fix. I got call in recd and message too.. I want my AC fox replace my ac