B.2.3 To ensure fairness to the Athlete , where an unsuccessful attempt has been made to test an Athlete during one of the 60-minute time slots specified in their Where abouts Filing, any subsequent unsuccessful attempt to test that Athlete (by the same or any other Anti-Doping Organization ) during one of the 60-minute time slots specified in their Whe reabouts Filing may only be counted as a Missed Test (or, if the unsuccessful a ttempt was because the information filed was insufficient to find the Athlete during the time slot, as a Filing Failure) against that Athlete if that subsequent attempt takes place after the Athlete has received notice, in accordance with Article B.3.2(d), of the original un successful attempt.