| Clue | Source | Date |
|---|---|---|
| Entering one typically results in a discount | Universal | 26 Sep 2024 |
| Coupon for online shopping | ||
| It may be entered when checking out | New York Times | 13 May 2023 |
| Characters that take off online? | LA Times Daily | 29 Apr 2023 |
| It's entered online to redeem a discount | Universal | 24 Oct 2021 |
| Money-saving characters | LA Times Daily | 05 Nov 2016 |
| Virtual coupon, briefly | LA Times Daily | 21 Jan 2015 |
| Virtual coupon, briefly |