EXTRA COST

How do I pay for the extra cost?

First, open the page of extra cost, in which you will find the set price is $1.
Then type in the character of the extra cost you need to pay into QTY box. For instance, if you want to pay $20 for extra cost, all you need to do is just to put 20 into the QTY box, then click on ADD TO CART to submit.