I have a question about ethical practices of plumbers.
Recently my mother, who does not speak English very well, got accosted by some gas plumbers who barged in and changed a pipe without authority from my mother. They used words such as free and so on to make my mother misunderstand that they just wanted to check something and ended up giving her a 135 dollar bill. I was wondering who I would contact to put in a complaint against them.
Thank you for your help
Lana