paysafecard is a prepaid card that you can use to pay for Skype Credit and other Skype features. If you've used a paysafecard to complete a Skype transaction, you cannot refund that transaction.
However, if you have an unused balance on your paysafecard, you might be able to cash it in. To do this, you need to contact paysafecard* directly.
*Skype is not responsible for the content of external sites.