A construction promoter inserted a term in a contract for a new build apartment which deprived the consumer, prior to payment of the total purchase price, of taking possession of the apartment and of any contractual defense against the shutting down of utilities in consequence of late payment. At the time of the provisional acceptance, the consumers raised objections as to the execution of certain works and wanted to compensate the repair costs with the remaining balance of the total price. However, the said contract term forestalled the buyers to rely on the defense based on the exception of non adimpleti contractus (ENAC).