Have others encountered any problems buying one way international tickets on b6? When looking into purchasing tickets for my parents to sxm, I saw a pop up message on the b6 website saying that proof a return ticket is required. I'm not sure why b6 needs such proof, but I think that providing a print out of a return reservation on another airline should suffice... but I wanted to see if others had any experience with this issue... Is there anything else I should tell my parents to do?

Also, I ended up buying my parents' ticket on my credit card...is that likely to be an issue? If so, what can I do about it now?

as always, thanks for your help!!