All payments are processed through PayPal.com through their secure payment processing.  You do not need an account with Paypal or need to open an account to process payment. 

Be is help to process payment online without opening an account with Paypal.

You may recieve an link via email or text that may look like below.

https://www.paypal.com/invoice/p/#XXXXXXXXXXXXXX

Just click on the link or  place (copy/past) link in your internet browser address bar.