Once the courier is sent, if you want to change the address, you have to wait until the courier arrives at the delivery point of the original address, and then send it to the new address. If the two addresses are in the same city, it will take 1-2 days, if it is in the same province but different cities, it will take about 2-3 days, and if it is in different provinces, it will take 4-7 days.