I did not receive my paid order but the order details shows that the order has been delivered by the seller.

You may try to contact the seller using KChat for clarification by clicking on "Chat With Seller". In the event that there is no response from the seller, please click "Request Refund" on the delivery confirmation to notify our team so that we may investigate the matter.

Please take note the buyers have a 72-hour period to refute an order. Otherwise, it will be deemed successfully delivered after the stipulated time frame.

You may check this guide to request a refund for the "Waiting Confirmation" order.