[2020] Didn't get Battle Pass's Apex Pack

Thanks for the detailed post. From what I can see there appears to be a mixup here.

A BP Apex pack was acquired and opened about 20 minutes before the timestamp given.

There can sometimes be a glitch where a previously unlocked BP item will show up in your rewards again after a match.

If I might make a guess, I suspect the pack was already opened -it was possibly assumed to be a pack from levelling-, then you played another match, at which point you were given the erroneous late notification for the pack you had already received. 

The pack contained a Wraith Quip, an L-star Rare skin and a Common flatline skin.