Hello @asafm7
Let me try to answer your questions:
1) there is no receipts option included in our plugin, there are however additional plugins you can use to provide the customer with such document if needed: https://docs.woocommerce.com/document/woocommerce-print-invoice-packing-list/
2) Paypal Payments has got the option within your order overview to give refunds to customers. When the payment was done via our (PayPal) plugin there should be 2 options on the order page: “Refund £0 manually” & “Refund £0 via PayPal”. At this moment I only have the sandbox setup available for myself to test with, so am not sure if you encounter any issues in the live environment. In the sandbox environment, I did not encounter any issue when refunding simple product purchases.
Please let me know if you do, so we can try to help you out further.
Kind regards,
Joost