Poor customer service.

I was up graded to a Sarah jeep. I got 30 mile away and could no longer keep the jeep on the road. The front end had a problem. Even over the smallest bump it would shake uncontrollably. I called the office and was told they could not bring me another car. I should drive back slowly with my hazard lights on. I did what I was told, however I did not feel safe. I was given a car to replace the jeep. this company dose not check out there cars before they defend them. I know this for a fact. I brought back my car and it was immediately resented while I was waiting for the shuttle bus.