QI ordered textile by roll, but isn't the quantity the same as ordered?

If you order textile by the roll, we normally arrange it as an estimated roll, so the quantity may be slightly above or below the quantity you ordered.
Therefore, if we need to change the quantity from your order, we will notify you of the quantity by email each time.
If the quantity is higher, we will request additional payment for the difference; if the quantity is lower, we will refund the difference within a few days after shipment is completed.