For a seller account, Yes, It has a refund policy. If you dislike continuing on the platform, you can cancel your subscription and request a refund.
But if you are a buyer, you might not be able to ask for a refund after getting access to the sellers' content.
Considering its strong customer support team, you can only expect possible resolutions for fraudulent transactions. But you can not expect a return or refund for consensual client transactions.
Segpay monitors all the secure transactions and the user details to keep a check on malevolent transactions. Your cards will be blocked for future use if you expect a chargeback.