@Bigbadtom is absolutely correct here. You've done all you need to do. One thing we would suggest is to cancel the transfer and re-transfer it to the same email again. Sometimes the initial one doesn't go through. Ticketmaster changed something in their email server last year and it caused a lot of transfer offer emails to be filtered to spam/junk or just not delivered at all. So we suggest all sellers cancel and send again if the buyer doesn't accept the tickets within 24 hours of the first transfer. But outside of that, you're all set.