You've got an amazing service. The number of notifications you send for your promotions are increasing to an irritating level. Please have a limit to it. A more concrete Idea is:
Have your customers add home cities to their accounts and don't send them notifications to book a hotel stay in those cities!
It's frustrating to see continuous notifications for booking a hotel in my home city whenever I book a flight to that place.
Would request you to please drop email at email@example.com. Thanks