If you are coming from the 24 the interchange is after the turn off for the 2. Nice fast road as it there are no heavy lorries. Don't know what the toll will be when it stops being free - Jan 1 2026 ?
So there it is. Thai megaphone technology is superior to the Cambodians. Saw a helicopter heading towards the border a few days ago. Thought they had found someone burning a field, silly me.