I had a truck pull out in front of me a couple years back. Police took his side while I was on my way to the hospital. I went out the next day took measurements and pictures and showed the guy was full of s*** and he paid for my bike my medical and new helmet and a new jacket. So it is worth a try. But if you did not get a police report. Your probably out of luck. They will take her word over yours. Because Thai people never lie.
Yep, I am sure their wife and kids will not miss them. A lot of people turn to these services because they have no choice. After covid many will not have the $ in the bank to satisfy immigration. I am sure you pay for all your speeding or traffic tickets direct to the police station and have never slipped a couple hundred baht to the officer writing your ticket. Really no different.