Please. Amendment (two m's, not three).
Ordinarily I wouldn't bring this up (big fingers screw up my own spelling all the time). However, this particular misspelling has been popping up all over the place far too frequently.
Thanks, he says, whilst trying to hide his red cheeks.
Normally, I pride myself on my spelling and grammar(at least whilst writing!), but amendment is one of those words I can never seem to get right.