Bad service

Made a booking with this guy Carl when I arrived he started serving the car but then to make worse not all of the items I was quoted for were replaced(not recommended platinum spark plugs and engine oil) instead he told me I did no specify them yet I have all the text he had sent to me, the last they did he did not have the diagnostic test machine it is with a client, he will come to my house later since he will be in the area now they not picking up my phone calls, I’m disappointed! I wonder if this is how they run their business. Carl I’m disappointed!