In order to provide the quickest level of service, please use the following guidelines to determine which support team (PayPal or Yahoo! Small Business) to contact if you or your buyers are having problems with the PayPal integration.
When to contact Yahoo!
Contact Yahoo if there are problems with either the Checkout Process or with Orders.
When to contact PayPal
Contact PayPal if there are problems with your or your buyers' PayPal accounts, or PayPal payment processing.
For customer service inquiries (existing PayPal accounts): 1-888-221-1161
To set up a new PayPal account: 1-877-455-1487