Meltdown battle pass

[HurtDuke50412]

First time posting, I'm wondering if anyone can help me, I'm not a huge gamer by any means but I can't work something out, after successful matches and subsequent battle pass level ups it can say in my summary I've leveled up 2 or 3 battle passes, yet in actuality it only le els up by 1 meaning I miss out on the others, am I missing something? The picture attached shows the last match, prattle pass levels earnd 2, yet my actual pass moved from 45 to 46, not to 47???