It's sent by using China Post Ordinary Small Packet Plus which is a cheap service of China Post. China Post doesn't provide tracking service for it after it moves for some stations in China. So, you can't get more update after Sep. 6. It usually takes about 40-60 days to be delivered. If you couldn't get it in time, contact the seller to give you a solution or open a dispute to get refund.

Tracking information available:

2019-09-06 21:58
Nanjing, leaving the International Bulk Collection Center, the next stop , Nanjing International

2019-09-06 15:18
Nanjing, "International Bulk Collection Center" has received, agent: Han Gang

2019-09-04 09:13
Logistics orders created