Got this given as a gift. Just tried to redeem my voucher for an afternoon tea on Thames but website would not let me book despite showing availability. Eventually gave up and rang city experiences to be told virgin experience vouchers only have limited availability on their cruises so next available weekend date was in November (a whole 3 months away - even though advice is to book 4 weeks before). I had to settle on a weekday which means i have to book a day off work. You are better off just paying direct for the cruise. I guess advice is just don't buy virgin vouchers as it is just too much hassle for what was a nice surprise gift.