Can you stack coupons at Booking.com? What are their coupon stacking policies?
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It's not clear whether Booking.com allows coupon stacking. Please check out this page to see if Booking.com currently allows you to stack coupons.
Booking.com does change its couponing policies from time to time so you can always check their homepage to see if there's any info on coupon stacking.stores that allow coupon stacking across all categories.