Some agents charge a service fee for the buying through Yupoo.
Sellers allow you to circumvent this through 2 methods
- having all products on taobao/weidian (with limited pictures), usually there is a link in the album. You can just buy normally, even if the pics look different.
- 1-yuan links
The RepArchive Sellers list helps you find purchase links for Yupoo sellers and contact info if you have any question.
Since this is also in the sellers interest most have a way to buy through Taobao, just ask them.