The info I have has the application of pre-emergents is in the second half of August.
So that is time is now.

I had the same problem with the wall mounted washing line I installed.
I got the longer (than recommended) dynabolts and drilled the hole through the centre portion of the brick…

You are up for full cost of the fence until your neighbours build. Legally your neighbours don't have to contribute half until they build.
https://www.commerce.wa.gov.au/sites/de ... online.pdf

Try a competitor eg Westnet, iinet etc
Telstra/Bigpond misled us once in similar circumstances. Telstra/Bigpond told us there were no ports available after moving house so we decided to try another…