receipt
US /rɪˈsiːt/
UK /rɪˈsiːt/

1.
a piece of paper or an electronic document that shows that you have received goods or money
:
•
Can I have a receipt for this purchase?
•
Always keep your receipts in case you need to return something.
2.
the act of receiving something or the fact of being received
:
•
We confirm receipt of your order.
•
Upon receipt of the payment, we will ship the goods.