Schedule in your COS
k. Reserve Duty at Home Base, either on the published Roster or assigned directly in place of an O day, totalling in excess of thirty days in a crew member's Birth Year
3.86 hours per Duty during which the crew member was not called out.
You can look at the cumulative total of reserve on your live roster, it is a bit behind but it includes days you are called out on. The catch is if you get a split duty over 2 days you will get less credit than published ( if over 30 days )
If this is not the case then your COS is being contravened and you need to rectify it.