Hi Goran,

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 Feb. 29. 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.

Number: UP850584540CN
Package status: In transit
Country: China -> Serbia
2020-02-29 23:27, Guangzhou, leaving the International Shijing Business Department, the next stop " Guangzhou International"
2020-02-29 11:35, Guangzhou City, "International Shijing Business Department" has received