Getting scammed by restaurants in Galle, how to avoid it!

If they become aggressive, mention that you will call the Tourist Police. The local authorities take these scams very seriously, and the threat alone usually resolves the fake charges on the spot.

If they bring a bill that is double what you expected, calmly ask to see the menu again to verify the prices. Take a photo of the menu. Often, just politely pointing out the discrepancy with photographic proof makes them back down immediately.