Where the buyer's failure to take delivery of the goods in accordance with the contract amounts to a fundamental breach of the contract or gives the seller good grounds for fearing that the buyer will not pay the price, the seller may declare the contract avoided.

Where the failure to take delivery of the goods does not amount to a fundamental breach of the contract, the seller may grant to the buyer an additional period of time of reasonable length. If the buyer has not taken delivery of the goods at the expiration of the additional period, the seller may declare the contract avoided, provided that he does so promptly.