I've read posts on this board that say you can use OBC for private transfers at the end of your cruise by talking to the concierge to arrange this. This has me wondering if you can use OBC for a private transfer during the cruise. Specifically, we would be interested in a private transfer from Cadiz to Seville and back. There is a 7 hour DIY excursion, but given we are in port 12 hours, we would like a bit more time in Seville than the group excursion allows. And we have a lot of OBC. Has anyone ever been able to arrange this?