Without prejudice to any other contract you have entered into with us, these terms and conditions and all documents expressly mentioned (including, for the avoidance of doubt, the cylinder filling agreement in which you order cylinder gas) constitute the entire agreement between us regarding the subject matter of the contract and supersede any prior agreement. Agreement or understanding between us, whether orally or in writing. You acknowledge that, when entering into this contract, you do not rely on any statements, assurances, assurances or warranties that are not specified in these Terms and Conditions. 17.1 We use the personal data you provide to us in connection with your order or in subsequent correspondence or communication, for the purposes of processing your order and managing your account. If you agree, we (or one of our companies) may send you emails with details of other products or services that we think will be of interest to you by checking the box on the order form. However, you can unsubscribe at any time from receiving further marketing mailings by using the opt-out function in any email you receive from us or by contacting us at firstname.lastname@example.org. We do not disclose your personal data to companies outside the Calor Group for marketing purposes. The list of installers made available by Calor Gas Limited (“Calor”) in the Finder installation tool is not exhaustive and other installers may be available. Any installer referred to is independent of Calor and Calor cannot assume responsibility for the treatment of an installer. All work performed constitutes an agreement between the installer and the customer and Calor is not involved to any extent.