Rattling from wheel arch

[Dan24]

there is a rattle of som sorts coming from the rear wheel arch on the drivers side. ratles when i go over bumps..... car was in only the other day to get the suspension looked over and get some bushes replaced, and they didnt pick up anything..
any ideas..??
they said there will be some noise and the springs are new, but this noise is diffrent to the others, and is only from the one spot..

small note, car was in a minor accident and got hit near where the rattle is, may have knocked something loose, but cant put my finger on it =/

[Burnout124]

check that the shockies are done up

[c2105026]

check that all bodywork has been replaced properly and done up.