How to complain to the seller if the transaction cat applies for a refund and the seller doesn't handle it?

If you have a refund dispute (Alipay transaction other than Taobao) when using Alipay service, you can not only inform the transaction party for negotiation and communication at the first time, but also submit valid vouchers through the refund path, and we will follow up your refund as soon as possible. Special reminder: 1) Please upload a file in jpg/gif/png format, with the maximum file limit of 500k 2) You can take photos or scan the voucher first, and the picture can be uploaded as an attachment. You can complain that the other party does not deliver the goods, and upload a valid certificate on the next page. (that is, the buyer pays according to the agreement, but the seller fails to deliver the goods according to the agreed time, or the seller claims to have delivered the goods but fails to provide a valid delivery certificate).