You can contact the seller directly and cancel the order after reaching an agreement. The main purpose of communication is to obtain the seller's understanding. At this time, the reason for canceling the order is very important; reaching an agreement is the most important thing, so as to avoid affecting the reputation of both parties. Of course, if you cannot reach an agreement, you can only return the goods. At this time, you need to initiate a dispute resolution request with EBay or PayPal. At this time, you still need a suitable reason. If the dispute resolution is successful (approved by EBay), the refund will be made, but the buyer generally has to pay the return shipping fee.