1. Please check whether the transaction certificate you uploaded meets the following requirements:
(a) Supported image formats: jpg, jpeg, bmp, png
(b) Supported image size: 5MB per file
(c) Number of supported files: 8 pictures per order
2. If your picture meets the requirements, you can try to change to another browser or clear the cache.
3. If you still cannot upload pictures. Please save the deliver pictures or deliver videos and contact online support for help. Please do not lose your evidence of delivery, it will become an important evidence for dispute resolution.