My registration was due 13 February. I received my first notice for registration Jan 15th. I made sure that all of the information that the RAA requested (incl photos and payment) were presented on Jan 25th. My wife rang the RAA on 8th Feb to ensure that the rego was going to go through on time as we have planned several outings over the next few weeks/months. Before she was even asked to identify herself or the aircraft, she was told that I would not be able to fly as of the 13th as "an audit is taking place and registrations are delayed". She then tried to find out where we were in the queue, but was told that it didn't matter because "expired registrations are still being processed so current regos are further back in the queue". After much persistence from my partner, they finally took my name and registration number and she was told that "all information had been received and looked to be in order" but we were to "cancel our plans" as the registration process would not have been completed by the 13th, and the time frame for registration completion is unknown. I guess that means I need to cancel indefinitely? Perhaps there is no financial cost involved (this time) apart from hangar rental, but the inconvenience is HUGE - because of incompetence! I would be sacked tomorrow if this s*#t happened at my place of employment - especially when all ducks are aligned!