There is no need to bind. The amount you mentioned should still be insufficient. Did you calculate the price of the goods directly?

If it is mailed directly to China, you need to pay the freight and tax first. If it is not deducted after going through the customs, it will be returned to you. You should only see the price of the goods.

I was in the same situation. I thought that if I was dissatisfied with 5 yuan, I didn't need tax. I just calculated the price and freight of the goods, and it was always impossible to continue. Then I found out that there was tax after adding money, and it was ok. The tax paid in advance for my 5 goods is around 13 yuan.