这几天要预定饭店，
打算使用cat1-5免房券
结果booking时都显示：
An unexpected error has occurred
Please try again. If the problem persists, you may call 1-888-236-2427 from
within the USA or Canada. If you are calling from a location outside of this
area, please consult our worldwide reservation directory for the appropriate
number.
请问大家会遇到这样的问题吗？
我是用电脑网页版的