If you noticed,I have been very chill when he start to make snide remark just because of my odd-one-out statement in this thread and he doesn't believe my insurance company goes the "extra mile" e.g. chase the other party for a response,protect my interest etc. FYI my NCD and premium stays the same even after the 10k OD first then claim from the malaysian insurer.
Then subsequently his 'tv shows' came in, greeted my mum, calling me name

$$. The IRONY that someone who called me low-life does such childish things.
Anyway,I'm glad my talk isn't as cheap as Mister ASS(ume) who literally gave no other options for you to consider. There are people who are actually given similar options to what I encounter
1)File a case
2)Claim OD
3)Your insurance demand from the other party's insurer.
While I understand every case and insurer handles report differently. Of course, there are many others in a position like you were with many loophole problems. That's why your insurer's calibre is important.
The key person in helping you is actually the solicitor/lawyer,also the person filing your case suggesting you the best fuss-free options(imo,your AD personnel failed my expectations).
As to how good is that solicitor/lawyer and person filing the case, let's just conclude that it depends on your luck.