So many Australian sites use some data source that has an old name for the building I'm in, and sites are so convinced their address databases are right that I can't do anything about it! Mildly frustrating
Our current building is one of those 56-66 style buildings. Different service use a different number (e.g. postal is 56, gas is 58). We've had a few cases where our address doesn't match so the system rejects us. And when I vote I have to read which number they have upside down!
It took a surprising amount of time to cascade through systems, as in years.
I think we're at +8 years now, and Google Maps still has the old zip and city. Which means many websites do too.