Hey Mylène,
Are you referring to a request to another bunq user, or to a bunq.me request (to an external email address or phone number)?
Requests to other bunq users do not have an expiration date, you can always pay them! bunq.me requests instead expire after 30 days 👍
The requests that are waiting for an action from you will be always shown at the very top of your Events tab, under "Awaiting events". That way, you'll always know if there are some pending requests :)
Let us know if you'd like to see something different in your bunq app, we always love to hear your feedback!