Hey MMA_anytime,
While we aren't able to provide a full breakdown here on the forums, it does look like you've been correctly receiving - and then subsequently spending - those Apex Coins in-game.
For example, you've mentioned missing about 1550 Apex Coins in the last day, and then receiving 100 more but only ending up at 550. There were two separate purchases made with Apex Coins within the last day for 700 Apex Coins and then 900 Apex Coins - 1600 Apex Coins total, which fits with what you've mentioned. That brought your total down to 450 Apex Coins. You then received another 100 coins, correctly bringing your account up to that 550 total.
It looks like those purchases were for event packs, so keep in mind as you get more packs, the price on those does go up to an extent. If you weren't accounting for that, it may explain why you're at a lower total than expected, but fortunately nothing has just gone missing here - in all the recent instances where coins have been removed from this account, it was specifically due to purchases of event or cosmetic packs or a Legend Pass.
If you're looking for more details on recent purchases please contact support directly as EA_Barry has mentioned.
