As an owner you are able to inspect all the books & records of your strata scheme. This will include the strata roll. Often the strata roll may not have phone numbers or email addresses, however it is likely that the strata manager does have a list of these. These should also be made available to you as they form part of the books & records in our view.
As you are a committee member I would think it would be expedient for the strata manager to just supply you with this list.
The following is as explained by a lawyer on a panel Q & A at Griffith Strata Conference in Sept 2019
The privacy act does not prevent the release of personal information if you are required to by statute. Every state has a regime where people are required to allow inspection, including inspection of personal information as defined under the Privacy Act. You need to have a privacy policy which explains that to people & that’s often where the failure is, the managers who would be subject to the act not having an adequate privacy policy that explains that.
Perhaps you can ask your strata manager to see a copy of his privacy policy?