Bins removed and thrown into Brook

Hello, There were near a dozen bins along Spadesbourne Walk and through the park removed and thrown into the brook last night.

We managed to recover five or six of them but there are still two we couldn't reach... One on the corner of Brook Road/Spadesbourne Walk behind the garages and another midway along Spadesbourne Walk.

It seems every week at least one is picked up and either thrown into the brook or else the contents strewn about - Could someone not look in to actually using the locks on the sides of the them, that are there to stop this? - It must surely have some cost having to replace several of these every month.