Unfortunately I can no longer attend an event due to childcare issues. I have asked the group if they know anybody else that could take my place. Nobody has replied on the group chat. They don’t seem bothered that I can’t attend but I’ve since spoken to a member and they are expecting me to pay the final balance which is £100. It would work out to be an extra £10 per attendee if they split my cost between them. I can’t work out if I’m being unreasonable or not for not wanting to pay. The event is 5 months away so I’m not calling off last minute and I’ve already paid a large chunk in the form of a deposit which I’m not expecting back. I thought that was the whole point of a deposit? Anyway, should I suck it up and pay the £100 or is it reasonable to ask everyone else to pay an extra £10 if they can’t find anyone else?