Best friends DD has gone to a (9th) birthday party today at build a bear.
She had to drop her into the middle of town - so pay for parking. They will be getting the train home.
But gobsmackingly, they were told (at school via the birthday girl, no communication from the mum), that they had to bring £20 with! 
When best friend queried this with the mum on arrival, was told yes they needed £20, as that was what was agreed with the birthday girl, for extra's 
So we assume, the mum is paying for the basic bear and party, but is expecting the parents to pay for the extras.
This was not discussed or mentioned by the mum in the run up to the party. And would you want your child to be the only one not having the extra's.
It was only 5/6 girls invited, so surely they should have stuck to an amount they could afford. You don't ask people to contribute to a party surely?? So parking, present and card, and fecking £20! AIBU?