Names of tenants to be given to the SM

I know this subject has come up many times but I just want to make sure we have it right!

This concerns a strata in NSW.

Is it compulsory for an Owner, or their Real Estate Agent, to provide the Managing Agent of the Strata with the names of the tenants of their unit.?

How soon must this be provided if required?

What should be done if the tenants change?

One of the units that is leased is suspected of subletting and how are the SC and Managing Agent going to control this.

In fact it may be that the lessee does not even live in this unit and in fact may live in another city.

It is also suspected that the subletting, if in fact it is sublet, is for a very short period like a week or two at a time, and therefor a short term let.

Any advice would be appreciated!