We reserve the right, periodically and at any time, to modify or discontinue, temporarily or permanently, functions and features of the Service, with advance notice where possible, all without liability to you, except where prohibited by law, for valid reasons such as in case of genuine interruption, modification, or discontinuation of the Service or any function or feature thereof, or need to repair, maintain or improve the existing functions or features, or to add new functions or features to the Service, or to implement advancements in science and technology or ensure the operability or the security of the Service, legal and regulatory reasons.