Free regular-size hot or cold beverage for your birthday

Free regular-size hot or cold beverage for your birthday.

Conditions: DK Rewards member, registered with date of birth provided at signup. Published details differ on timing: the reward is either issued 7 days before your birthday and valid for one month, or added on the first day of your birth month and expiring 11:59pm on the last day of that month. Either way, it's roughly a birthday-month window, not on-the-day only.