I know that that was a long one so no replies are expected

. I'd also like to humbly apologize and thank the people that have offered me advice in this thread. I should have done it DIY but what these people offered to me made me think at worst I would be $125 poorer with the problem unfound. It is much worse than that now.
Any Aussie's around that have dealt with operators such as these? I am begging for advice as to how to at the least get my money back.

Damages will come after that but are obviously harder to prove. I just want the money back for the work that I never agreed to or asked for.