Check your Paypal account to see if payment was made but no email sent to you - It has happened to me both here and at Feebay. The email from Paypal eventually shows up.
Go to your store settings, and look under "Payment Settings" at the bottom of the page. Do you have this set: Enable Buyers To Pay Later / Pay by Check or Money Order? It says: "For store items, buyers are required to pay online at checkout. With this option, buyers can request to be pre-approved, by you, to allow them to "Pay Later", including by check or money order. However, note that any orders which are unpaid for through this feature will not be eligible for fee refunds.".
Comments
https://www.hipstamp.com/store/fatdanes-stamp-store
deebee
Maybe this is happening?