Service: Poor workmanship

<p>I recently took my car to Autobahn Bmw for service and general checks. My car had no funny sounds when i took it in. Two days after it started making squeaky noise from the engine when i accelerate, i thought the noise is temporary, but now its increasing. They called me to check if i am happy with the service, i did tell them that my car is making a funny noise, and they said the service consultant will call me, up until this day i haven't received any call. This is highly inconvenience.</p>