I have a customer that uses Sponsored Guest. On occasion, the Guest user will close the Captive Portal page while they wait for the Sponsor to approve the account. Soemtime this is due to the Sponsor taking a long time to get around to approving the account and sometimes they just close the page. This has led to frustrations from both the Guests and the Sponsors. The Guest due to having to complete the information more than once and the Sponsor due to the additional Sponsor request emails.
I was going to suggest having the Guest receipt be emailed to the Guest however in these facilities, there is no cellular therfor they cannot check email without being on the network. I could open up SMTP on the Guest network but I am curious what others have done to address this situationj.