Contract of sale. 2.2.1. In sales based on an offer, a contract of sale is deemed to have been concluded when the Buyer notifies the Seller that it accepts the offer. In other cases, a sale is deemed to have been concluded when the Seller has confirmed the order or delivered the goods. In the event that the Buyer’s order differs from the Seller’s offer, a contract of sale is deemed to have been concluded on the terms of the offer unless the Seller has confirmed otherwise in writing. It is the Buyer's responsibility to check the accuracy of the order confirmation. The Seller has a right to delay to fulfill the sale if the Buyer has unpaid expired invoices. esitava kaupade kasutusotstarbega seonduva teabe õigsuse eest.