Instead of checking out directly , submitting quote(s)is an essential part to reduce the refund rate and saving time to process the order. If you submit quote(s) before checkout, we will communicate on behalf of you with the seller of the item you submitted.
Submitting quote before checkout is important because sometimes the items available stock and price are not accurate as the system shows , so we communicate with the seller to confirm about the item price,inventory,domestic shipping fee and so on.
Imagine you are buying a custom-made and pre-order items, measurements, production time,final price can perhaps be confirmed with seller if you submit quote(s)