喜达屋与万事达卡合作，欧洲，非洲以及中东地区付二住三，付三住四，付四住六长期活动

仔细看了下这个活动，没有任何有效期，应该是跟万事达卡长期的活动。使用万事达卡预定以及支付房费，住三个夜晚只需要付两个夜晚的钱，住四个夜晚只需要付三个夜晚的钱，住六个夜晚只需要付四个夜晚的钱，最多可以一次开四间房。

活动页面地址：http://www.eame.starwoodoffers.com/eamemastercard/en/

相关条款：http://www.eame.starwoodoffers.com/eamemastercard/en/tc

The Promotion is valid only for MasterCard cardholders.

The offer(s) apply to the hotel room rate and room tax only. Other hotel charges, service charges and applicable taxes (other than the room rate and the room tax) must be paid for by the MasterCard cardholder in accordance with the cardholder’s agreement with the hotel.

The MasterCard free night offer features:

Buy 2 nights, Receive 1 Free Night Offer advance reservations are required Offer is only valid for a three-night minimum/maximum length of stay.

Buy 3 Nights, Receive 1 Free Night Offer Advance reservations are required Offer is only valid for a four-night minimum/maximum length of stay.

Buy 4 Nights, Receive 2 Free Nights Offer Advance reservations are required Offer is only valid for a six-night minimum/maximum length of stay.

A cardholder’s booking and/or stay pursuant to this Promotion will be subject to the Starwood Terms and Conditions and Privacy Policies.

This Promotion is not valid for bookings for groups of 5 rooms or more.

Full pre-payment for all accommodation must be made using a MasterCard card.

The products and services offered under this promotion are provided solely by Starwood, under such terms and conditions as determined by Starwood, and MasterCard accepts no liability whatsoever in connection with such products and services.

Offer must be booked and paid for with a valid MasterCard.

我们拿 Luxury Collection Al Maha UAE 这家喜达屋旗下的酒店举例：

直接显示有 MasterCard 3 for 2 的活动价格，当然都是 Flexible Rate 做活动，但是确实比最低提前预付价格要低，而且对于行程安排以及变化上更为适用。