Committee reneges on AGM decision and stops work on roof repair

We had a crystal clear AGM recently, the results of which was approval for my garage to be repaired. This is the second time I have formally tried to get the garage roof fixed. During a rainstorm, water pours down three sides of the garage as well as runs over the electrical lighting. The problem I have since learned is a design fault of the garage. The guttering can not hold the amount of water that is pouring down from my main home onto the flat roof garage.
I have had damage to my personal property over the years and have submitted photos and videos along the way to the committee as evidence. I also have repeatedly told the committee of safety concerns.

First attempt to rectify – 2017
– received 3 quotes
– Once the committee was informed I wanted to fix my garage, then they decided they needed repairs as well. I found this a form of sabotage as it made it more unlikely that my request would be passed.
– The chairman told me he can’t afford a special levy
– A committee member said she wouldn’t vote for the contractor which was our best option as he was affordable and offered the best solution
– at the time I didn’t see a way forward and gave up as two out of the two committee members more or less said no.

Second attempt to rectify – 2019
– received 4-6 quotes
– A committee member told me a garage does not need to be leakproof
– A committee member told me I should wait 6 months after clearing the guttering before requesting quotes
– A committee member told me I should pay for it myself as others can not afford a special levy
– A committee member told me I should put in some money in good faith and strata will pay the rest
– A committee member told me to just fix the guttering first and then see if it improves
– Committee sent email to stop current work order
– Committee members approved quote at AGM but now requesting an EGM to change the motion
– During AGM committee would not vote for me to fix my roof unless all garages get to be repaired (regardless of proof of damage…)
– After the AGM, one of the committee members told me he voted to have all roofs replaced/fixed, because the ex-chairman was planning on selling his villa and would like to replace his roof.
– They accused the strata manager of not being partial. This is absurd. I walked out of that AGM feeling like I was blindsided. In order to have my roof replaced, I had to vote to have everyone’s roof repaired regardless of whether or not they needed to.

They are currently disputing the minutes from the AGM. There was a side conversation that happened after the meeting and after voting has ceased which was not recorded. They are now blatantly lying. They appear to want to choose among all the quotes I had already presented and either choose a cheaper quote or make alterations to ones I already have.

The work order has been given and the deposit has been made. Three of the five committee members have given their motion for an EGM to reverse the decision from the AGM.

Can anyone suggest what we can do? It seems really unfair that they can overturn a decision that was voted on. Any advice would be really appreciated.