I am changing my rating from five stars to one st...

I am changing my rating from five stars to one star. I have had my car in for service 4 or 5 times here. The last time in, they kept my car for a week because of high oil consumption and a squealing belt tensioner pulley. The pulley...wow. I told them that it was bad and needed to be changed, when i got my car back the service rep told me it just needed to be tightened, I told him that that was not going to fix it. The very next day and every day after it has squealed. I have called Jorden the service rep and left a message and talked to another rep. I have not received ANY calls back and it has been a week and a day. As for the oil, they claim that a bad PVC valve caused me to burn 36.2 ounces of oil every 1200 miles.(this went on for 40,000 miles) There was and is not any oil on my block or any motor components so that means it burned it which means I know I have sludge in my motor. Subaru says they won't do any additional work to clean my motor or check the seals. I have had 5 knee surgeries and a replacement as a disabled veteran, I need a car that will not leave me stranded. My next step is the better business bureau.