Noisy car

Well as Beth has stayed in the same city for a couple of days, there have been no travel problems for me to resolve.  It appears that she hooked up with a few people from the hostel to wander around Rome which is probably a very good idea.  Unfortunately whilst they were on the train into the city, there were lots of Romany children swarming around and generally being a nuisance.  This seems to have been a distraction technique and resulted in one of the males in the group being relieved of his phone, which she said had put them all on edge.  Apparently Beth was hugging her bag to her chest all the way.  Thank goodness.
Our car has been making expensive sounding noises for some time - whenever we went over a bump in the road a creaking or scraping sound was heard.  I was afraid that the suspension was in trouble so eventually we bit the bullet and took it into the garage for investigation.  We were somewhat relieved when the mechanic said that they couldn't find anything wrong, except that the covering for something had come loose and worked its way out of place catching against something else (possibly the wheel arch, but I can't be sure) so they had just cut it off and thought that it would do the trick.  We were in high spirits as we drove home, thinking that we had been spared an expensive  repair.  
The very next time we drove over a speed bump - there was the sound again - grr.
Not sure what to do now.