The seller can demand payment for the item from the time it is sent from the seller to the buyer. If the buyer uses a credit card or debit card when paying, the seller can reserve the purchase price on the card when ordering. The card will be charged on the same day as the item is sent. When paying with an invoice, the invoice to the buyer is issued when the item is shipped. The payment deadline is stated on the invoice and is a minimum of 14 days from receipt. Buyers under the age of 18 cannot pay with a subsequent invoice.