[Expired]Greek Highlights: Athens and Santorini @ Great Value Vacation

: I think you have to upgrade your service first, and only at the final checkout step do you get a place to enter the discount code. Also, the price changes every day, so it's better to look for the best date yourself before deciding. 我看必须先升级服务最后结账才有输折扣码的地，而且每天价格不一样，先自己找找好价的日期再决定吧

回复 @易肥易爆炸Rubibi : Yeah yeah, that's right. Before filling in the information, there's an 'upgrade' option. You need to select that first to get the field for entering the code, which will appear together with the credit card information section. 嗯嗯是的，填信息之前有个upgrade的选项，选好才有输码的，会和填信用卡信息一起出来。

: No refunds. Changes probably have some restrictions, such as paying the price difference and so on. 不能退款，更改的话应该是有点限制的，比如补差价之类的

: Online reviews say the customer service isn't very friendly, and getting a refund might be tough. That's why I've been researching so much lately – really want to buy but too hesitant to pull the trigger. 网评客服服务不是很友好，退款估计难。所以最近一直在研究，想买但是一直不敢下手。