It may be that they are just trying to find out what’s been going on or it could be that the person you are writing to doesn’t have a clue what they are supposed to do about the material on their website.
However, generally the Strata Manager is answerable to the Executive Committee in the first instance and the Owners Corp ultimately. They don’t have the same obligations to respond to individual lot owners (or they would spend their lives chasing individual queries).
If the Strata Manager and the EC won’t address the issues, you should approach Fair Trading about arranging a mediation.