Hello Josianne,
Thanks for reaching out and I’m sorry about this issue with the attendee information.
In your system information I see that you are using older versions of all our plugins. After creating a full backup of your site (files and database, just in case) please update the plugins to the latest versions and check if the issue still exists. If this was a bug, likely it has been fixed since then.
The data itself is saved in the wp_postmeta table where the “meta_key=’_tribe_tickets_meta'”.
Please also note that if the ticket number is increased on the basket page, then the information for the extra tickets will not be collected. In this case however the first ticket that was added to the basket should still have the extra info.
Let me know what you get after the update.
Cheers,
Andras