How many days did bogo coupons last?

For the weekend. On weekends, you can get a free room voucher by paying for one night in an intercontinental hotel and actually staying for two nights, which is equivalent to staying for one and getting two free. You can also pay for one night with points and stay with coupons on weekends. BOGO coupon refers to intercontinental group's buy one get one free coupon. After purchasing intercontinental ambassador members, you can get BOGO coupons (one get one free coupon for weekend accommodation), which is limited to intercontinental brands.