However, I found that international return coupons from other countries were available on Taobao. But to buy one for 15 yuan, I had to pay 10 yuan in shipping fees, which seemed unreasonable. I wanted to buy domestic-issued ones, but they weren't available online. When I went to the post office near my workplace and asked, they didn't know and suggested that I go to the city branch. But seeing how quickly the time was passing, I had to give up. I called 11185 (the postal service) and they promised to communicate with our local post office and provide feedback. Does anyone have any ideas about how to buy international return coupons? 73!