Go to https://sketchucation.com/webshop/my-licences.php
Sometimes our mails can end up in Spam.
If you can't locate it or it's not at https://sketchucation.com/webshop/my-licences.php then send us a mail support@sketchucation.com with your Transaction ID and we'll look it up.
PayPal can place payments in a pending state if banks don't fulfil the transaction.