I wouldn't rely on this either.
Mine's coming up to 5th year service and now I am told that it will only be 58 months old (12 months since the last service) so although I have done sufficient mileage for ATF change, it will not be done because it is not 60 months old. They propose I renew my service subscription for another year. However, by next year, they cannot guarantee that the mileage interval will not be changed to 75000 miles so I will not have done enough miles and then perhaps next year they will propose that I renew my service agreement for another year ..... you get the idea.