How long will it take for the package from Nanchang to Shenzhen to arrive?

I posted it on Taobao, which happened to be from Shenzhen to Nanchang. You can refer to it. It took five days to send it by surface mail. No way, so express delivery will be faster. The shopkeeper told me at that time that surface mail could not be inquired, so the speed was not good . . Anything is possible, but I should get there in five days. I am anyway. . .