Hi Vuxvuxtrash,
Sorry to hear you’re having trouble purchasing Apex Coins through Steam.
Since your Steam Wallet balance isn’t being deducted and the purchase never completes, it sounds like the transaction itself isn’t going through rather than the Coins being missing after a completed purchase.
Please try fully restarting Steam and Apex Legends, then make sure the Steam Overlay is enabled before trying the purchase again.
If the transaction eventually completes and your Steam Wallet is charged but the Apex Coins still don’t appear, please follow the missing content steps here:
How to find missing content in Apex Legends™
If the purchase continues to fail without any charge or error message, please let us know whether the Steam purchase window opens and what happens after you select Authorize.