I received the letter this week, October 2 2018, called the garage to arrange the job but was told they did it back in September when the car was in for a minor service, though they did not tell me. Is there any way I can tell if the mod has been done now the parts are fitted? Also there is, as far as I can tell, not a page in the service book to record recalls. Any other way of checcing recalls have been carried out?