Various suggestions have been put forward on here in the past as to how to proceed when you have got to such a long delay.
One POV was to get another connection working and wait for VM to install while racking up the compensation. Once VM has installed, cancel within the 14 day cooling off period and collect the compensation. Use the (now working) VM connection in the future if you ever wanted to try VM again.
Alternatively, cut your losses at 146 days, claim the compensation and use that towards your current broadband costs.
Or wait and see if VM itself cancels the installation (surprisingly common, reports on here detail VM causing a very long delay and even going as far as nearly finishing the cable installation only to give up at the end and cancel the installation).
With any of the above it is likely that VM will not offer the full compensation due and the case will need to go to arbitration following a formal complaint to VM first of all.
Having a very detailed timeline of evidence (dates, times, calls, messages, emails, no-show appointments, failed appointments where nothing is achieved etc.) will help with any arbitration claim.
Which one to choose above depends on how much further your patience can last and whether you are willing to go to arbitration. The general feedback from similar topics on here is that customers get a fair hearing at arbitration and the adjudicator will soon see through any of the dodges VM tries to use to avoid paying if they do not comply fully with the terms of the auto-comp scheme. You may eventually get a just outcome via arbitration but it is likely to require further time/effort/prep/evidence to get it.
