Poor Workmanship

Took my car in to fix it at Linmeyer Branch as it was cutting off when stopping at stop light and traffic cycles. Was first told diesel has water need to change garage, they said the cleaned by fuel system. Issued persisted, was told to finish diesel in tank and come in with a 20l container of fuel. I brought that in after 7 days as i had just over 3 quarter tank. Was called and told that they changed by 2nd diesel filter, which i paid for. After driving out the problem persisted but now my engine light turned on and there is a rattling sound coming out which was not there before. Brought it in a fault was picked up on the machine which was not there before. All that they can do is refer me to a diesel specialist, cant fix the problem that was never picked up the 1st nor 2nd time i brought the car in. This is poor workmanship im coming out with problems i never had before, and primary issue not fixed. Would not recommend the place to anyone unless you want your vehicle damaged.