Buzzmeeh — iphone 6s battery draining and heating after charging port replacement

I fixed an appointment from this company for my iphone 6s charging jack replacement issue.
They replaced the jack and after that my phone is heating and draining battery
I called them to look in to issue but they are ignoring it
The technician is not picking calls and the buzzmeeh team named ravi who fixed appointment is saying this is not our fault.
My phone was working fine except charing jack was creating issue
After they fixed it got worst battery draining and phone get heat
I would request to ban this company