1.4 Binding Agreement. This Agreement, including the terms of the transaction and the terms and conditions of sale, and, where applicable, the Alipay Service Agreement and the Supplementary Service Agreement Alibaba.com constitute a legally binding agreement between you and Alibaba.com with respect to your use of the Transactional Services. By accessing and using the Transaction Services, you agree to accept and be bound by this Agreement. Please do not use the Transactional Services if you do not agree to all the terms of this Agreement. (b) Buyer Protection Plan. . . . . .