POLL! How many days in advance do you want to be reminded about the expiring loyalty stamp?

I am working on a new version of StampnGo and need your input!

Let's say you've got a LOYALTY STAMP in a cafe and it will EXPIRE in 7 days if you don't get another one. 🔥

Let's assume you really do not want to lose that stamp 😬

How many days in advance would you like to be notified about the upcoming expiration?