Sorry to hear about your experience. Unfortunately most CS people have limited English skills (like me) and the scripts they use are aimed at selling. So they are NOT ready, willing, and able. Mum’s the word.
You might give it another try on the social media
You say the driver of your light is damaged. Are you sure? It isn’t the led or the switch?
Anyway, a non working flashlight is a useless flashlight.
A working driver can be bought: there are members who manufacture and sell fine drivers.