i recently registered as a gas safe company and as my first job i installed a gas hob, and a seperate cooker in a new kitchen (also run enw pipes to the kitchen sink and connected this up) in a new kitchen , now before finishing the job off i told the customer that the meter was not earthed and that she was requred to tell the electrician during his ne visit to do the second fix to earth it if he could. now when i retured i bought the bill with me for the customer (£300) to wich she refused to pay me telling me i was to expensive!!! i left the property without signing the job off, now i take it i am still required to sign the job off legaly even tho i know she will not pay me?? she left it to the point where i had finished al the testing of the installed appliances before telling me that she would not pay me, this turned to an argument and i packed my tools and walked out the house! should i get somebody to capp the gas as i have not provided her with the paperwork??? any help here would be much apreciated!!!