I disagree. If additional charges are required due to an unexpected rise in fuel after brochures are printed, then there is no choice except for a surcharge. You can't raise "base" prices over the brochure without being guilty of false advertising.
No one ever pays "brochure price"
. ... well maybe 7 people a year world wide
I've always wondered why there is even a "brohchure price" printed. The real prices are never even close.