it on the Platform using adequate numbers of technically skilled personnel, and shall notify Supplier promptly after the Software has been properly installed. Alternatively, Bank of America may request Supplier in writing to install the Software at the Time and Material Rates, unless otherwise expressly agreed in an Order. 6.5 Supplier shall provide at, no additional charge, installation Documentation and reasonable telephonic off site consultation and assistance as necessary for Bank of America to install the Software, together with the installation support, if any, described in an Order. 7.0 CUSTOMIZATIONS 7.1 Supplier shall provide Bank of America, within twenty-one (21) calendar days after receipt of the Bank of America's request setting forth the relevant requirements, with a written estimate of the cost of the Customizations. Bank of America may direct Supplier to provide such written estimate on a time and materials basis or a fixed price basis, and Supplier shall comply with such direction. Supplier's response shall set forth the Delivery Target Date for such Customizations. 7.2 Bank of America may submit to Supplier an Order or other written authorization for Customizations, stating Bank of America's preferred Delivery Target Date for Customizations and the terms for the Customizations, as proposed by Supplier pursuant to the preceding paragraph. Unless Supplier notifies Bank of America of its rejection of Bank of America's written order within five (5) Business Days after its receipt, it shall be deemed accepted. Bank of America shall not be obligated to pay for Customizations or time and materials supplied in the absence of an Order or written authorization. The parties shall execute a Customization Schedule for each Customization. 7.3 Bank of America and Supplier shall agree in writing on the functional, technical and performance specifications of any Customizations. The specifications for each customization shall be described in a