I refer to schedule 2:"opt outs of additional and out of hours services".Paragraph 1(7) states:"Where a contractor has given two previous temporary opt out notices within the period of 3 years ending with the date of the services of the latest opt out notice (whether or not the same additional service is concerned), the latest opt out notice shall be treated as a permanent opt out notice (even if the opt out notice says that the contractor wishes to opt out temporarily)."