Hello @georgell, welcome to the Seller Community!
Currently we don't have a report or section to see if a customer received a receipt. Our CS Team can look at the payment and confirm if a receipt was sent. Or you can always resend a receipt from your Square Dashboard! Just select Sales from the menu, then click on Transactions at the top of your screen. From here you should see a list of all your transactions. If you click on a payment in the list a new popup will open and you'll see the option to send a receipt!
if you have any questions please let me know!
