Great Fun made charges of $12.99 to my credit card on several occassions without my authorization. They told me i checked a box on Hotwire to authorize the charge when i rented a car, which signed me up for $10-20.00 discounts. The only box i checked was agreeing to the terms @ Hotwire for a car rental. BEWARE, thought i was getting a great rate but got a hidden surprise (charge) instead.Will not use Hotwire again. read full review »