After got rewards on my Uphold account most of it was sent back to brave

after got rewards on my Uphold account most of it was sent back to brave, it said “You sent 18.75 BAT to @BravePublishers.” which i didn’t request to be sent “back” to Brave, Uphold support told me to check if the “Auto-Contribute” feature was on, it is off and always has been off, why were my BATs sent back to Brave just right after I got them?

How do you have so many BAT? I only have ~1 BAT. Maybe there was a perceived overpayment?