Coliseum reporting I already got ability mats

So I figured this out the other day...the rewards aren't supposed to refresh, it's just that each type of boss has an independent track. So for the first couple of days it looked like it was refreshing because you were on a new boss for the first time. For me, it also looked like it was refreshing to t1 for a couple of days after hitting t2 for the first time, as I hadn't reached t2 on those bosses yet. But now that we've cycled through the bosses a few times, it's more apparent that their tracks don't reset.