Thru email. So I guess website or phone really. Check out the "Merchant Services" section on the pp website. Found this in the merchant section...Email payments.... 1. You create an invoice. You create a new invoice or reuse an existing invoice template. You then enter customer contact information and billing details such as quantities, unit prices, sales tax, and shipping costs. If you use Quicken or QuickBooks, add a PayPal button to your invoices so your customers can pay you online. 2. Your customer receives the invoice via email. When a customer receives an email invoice in their inbox, they open it and click the payment button to make a payment. 3. Your customer pays you. Your customer has the option to pay using their credit card, bank account, or PayPal balance. They don't even need a PayPal account. 4. You get paid. (The fun part.) You receive an email when you get paid. You can then transfer the money to your bank account (bank transfers usually take 2–3 days to clear) or spend it online anywhere PayPal is accepted. With a PayPal Debit Card, spend your balance anywhere MasterCard is accepted or withdraw it as cash at ATMs. (You are eligible to apply after your PayPal account has been in good standing for 60 days.)