DD did her purple belt (I believe it's something like her 7th belt) grading today and she gets assessed by 5 of the instructors on different things, they fill out the sheet, at the end, the main instructor adds up the points on the sheet and says if they have passed/failed. She was told she had passed like all the other times, was given her certificate and belt and walked home (it's at the end of our road) we celebrated with a take away and was all smiles all around. About an hour ago, I received a call from the instructor that isn't her instructor but goes through the sheets, etc. and adds their names to the correct board after gradings, etc. says unfortunately she didn't actually reach the points needed for the grading and it was just a mathematical error and she needs to return the belt and certificate and she will stay at the previous belt until the next grading. I am horrified! She is 11 and that's quite young really... She is very upset!
AIBU to think they should check their maths if it's that close before telling her!? I am really quite shocked.