This is almost as bad as the Air NZ parking website that fails constantly meaning you can't log in due to an issue with Azure oauth.
I must have struck this issue probably 7-8 times over the past year or so which means nobody can book parking. It was down again yesterday and last night but back up working again this morning.
Spoke to a CSR last night to complain about it being down again and she didn't even seem aware of of Air NZ offering parking..