Passeio a pé por Paddington

I can't rate this. There was no group that looked like the one I was supposed to meet at Paddington Station, which was the designated meeting point. I wandered around, confused about where to wait in the station, and the meeting time passed. Then I noticed an email. About 30 minutes before the meeting time, the organizer had sent an email saying that the event was suddenly canceled, apologizing, and asking me to declare if another date suited me, listing the same day of the week for the following two weeks. I wasn't planning to stay that long and couldn't make any arrangements. I don't know the reason for the cancellation, and I just had to accept it. If it was going to be canceled, I wish they had contacted me at least the day before. This is the first time I've experienced such irresponsible treatment, and now when I consider such events in the future, I'll keep in mind the possibility of being ripped off.