The Purchaser acknowledges that the Instalment Date(s) are indicative only, and that such Instalment Date{s) can be revised by the Vendor due to acceleration or delay In construction Accordingly, the Purchaser understands and accepts that any change m the indicative Instalment Date(s) would be advised by the Vendor to the Purchaser at least one month in advance of the concerned Instalment Date(s), and the Purchaser undertakes to pay the due instalment payment(s) on the revised Instalment Date(s).