* It's a very niche or local brand: The lighter might be popular in a specific region or community, but not widely known.
* The name is slightly different: There might be a similar brand with a slightly different name.
* It's a fictional product: Perhaps you've encountered it in a book, movie, or other fictional work.
To help me find more information, please tell me:
* Where did you encounter the name "PROMISE" lighter? (e.g., in a store, online, in a movie)
* Do you remember any details about the lighter's appearance or design? (e.g., color, shape, features)
* Do you have any additional information about the brand or its history?
With more details, I can help you research further.