On June 8 FA charged a few people in MCE for drinks before the other FA pointed out it was MCE and supposed to include a free drink. She had completely forgotten. She settled it by giving everyone she charged a second drink. I’m guessing it will be a month or two before they really remember.
The FA also mentioned there was no way to record the complimentary beverage on the tablet yet like they do for EXP food/beverage.