Hare Jordan wrote:
Easy answer...accept and disclose.
However, keep in mind that he who pays the piper calls the tune. If you disagree with the person paying, you've got a dilemma that only you can answer.
Not sure why this is the case. By the time they write a single word, they will have already used half of the airfare, and they'll presumably have their return tickets in hand. Certainly if they have any negative reviews, they can simply put them in an article that is published after all services have been rendered to them.