e) In the Free State, Gauteng, Mpumalanga, North West and Limpopo provinces, the Bid Evaluation Committees disqualified bids based on the bidding prices of prospective suppliers being too low or too high compared to a predetermined estimate. In the Limpopo province, this practice was followed throughout as a standard working method. These bids were excluded from the evaluation process despite this practice being specifically prohibited in a supply chain management practice note issued by National Treasury.