21.6 At the end of your subscription to any Now TV service or Now TV Pack, or the existing Contract, if (a) we are unable to contact you; (b) you do not contact us; or (c) you are undecided as to whether to renew your subscription or the existing Contract, you agree that we shall, subject to clause 21.7, continue to provide the Now TV services (at the prevailing monthly rate published from time to time on our website http://nowtv.now.com/) and the value added services under such subscription or the existing Contract (at the rates payable for the preceding Commitment Period unless otherwise specified by us); on the terms of such subscription or the existing Contract; on a month to month basis until you end such subscription or the existing Contract by giving us at least 30 days’ advance written notice (or any other period we specify in the Application).