You can pay via PayPal, without even creating a PayPal customer account. In order to do so, select PayPal as your preferred payment method during checkout. At the end of the ordering process you will be directed to PayPal. If you are already a PayPal customer, you can log in with your user data and confirm the payment. If you are new to PayPal and would like to pay via PayPal as a guest you can proceed with the payment as a PayPal guest.
Once the incoming payment is authorised, your order will be processed. PayPal payments are usually confirmed within a few minutes.
When sending goods back, the amount will be credited to your PayPal account.