| (1) | Notwithstanding any other law, but subject to any other power that a court may have, if a contract does not substantially comply with sections 3 and 4(1), or if a seller has failed to meet any obligation under a contract or has contravened or has failed to comply with any provision of a regulation, and a purchaser proves that he has in consequence thereof suffered any prejudice, a court in whose area of jurisdiction the land to which the contract relates is situated, provided appropriate proceedings are instituted by the purchaser within a period of three years from the date upon which the contract was concluded, is competent— |