Offers are tailored specifically to individuals based on a number of factors. You will see offers that other players will not, and they may receive offers that aren't available to you.
Most offers will rotate and eventually be available to everyone, but there may be some exclusive deals that are only available to a select audience for a limited time.
Playing at different times of day (and different days of the week) will add to the variety of offers you see, but there is no way to trigger a specific deal if it is not automatically shown to you. We do our best to make sure you see offers that are most relevant and most useful to your current state in the game.