When searching, remember, a few words are better than many
ID100-The Bettor Forgot to Bet
Question: What happens if the bettor forgot to bet?
Answer: When a bettor forgets to place the bet either in writing or on a betting device, they must pay the winner just like the other players. This rule is not in Mah Jongg Made Easy
Source: National Mah Jongg League Bulletin Q&A 1987