Was awarded 3 packs from Arena but only received 2

[Joachim-22234]

This is indeed a bug.

@Vyraneer

[Arena] Some players received fewer pack rewards than shown on their run rewards screen. We’ve just granted missing packs to affected players. This issue will be fixed in an upcoming hotfix patch, after which point another grant will be done for players who run into this issue between now and that permanent fix.