That presumption may only be rebutted by the Athlete establishing that  no negligent behavior on their part caused or contributed to th eir failure (i) to be available for Testing at such location during such time slot, and (ii) to update thei r most       ISRM – January 2023  Page 43 of 54 recent Whereabouts Filing to give notice of a different locatio n where they would instead be available for Testing during a specified 60-minute time slot on the relevant day.