TL;DR: Events are non-refundable, non-transferable.
Occasionally, someone who has paid to attend an event will need to cancel. Due to the limitations and complications with providing refunds through meetup, the basic policy is no refunds on tickets.
Attending an event in someone else’s name is also not allowed. When people say “who wants my ticket” and then 5 people show up trying to claim it, it creates an administrative nightmare. Showing up without an RSVP is also a Meetup.com TOS violation and can result in removal from the group or the Meetup.com platform entirely.