FlyerTalk Evangelist
Join Date: Aug 2011
Location: Barcelona, London, on a plane
Programs: BA Silver, TK E+, AA PP, Hyatt Globalist, Marriott LT Plat, Hilton Diamond
Posts: 13,045
You should be protected by Amex - the card not the insurance, although the insurance doesn't hurt - if VS cancels your flights. Do a chargeback instead of accepting a voucher from VS. (if VS won't offer a refund)