Why didn't a customer get my message?

Work down this list.

• It is not due yet. Follow-ups go out from the save time plus the delay, inside 8am to 7pm your time. A save on Friday evening with a one-day thank you is sent on Sunday morning.
• Notifications are off for Wallet. Phones let people silence Wallet notifications. The message is still on the back of the card; it just did not light the screen up.
• The card was removed. Nothing goes to a removed card. The customer shows as removed in your activity.
• You are on Free. Messages are part of Pro. Anything due while you were on Free is skipped, not sent later, and saves made on Free have nothing queued. See what happens on Free.
• It was your own copy. Your copy never receives messages.

The Messages page shows each message's sends and the taps that followed, so you can see what went out.