why my bat has send to brave software without my permission

when I tried to check my account on brave browser I’ve notice that my bat was reduced so I went to my uphold account and see why that happened. I saw that my account sent 20 bat to brave software and I never open my rewards setting to auto contribute but when I saw my brave setting it was enabled! How could that be possible to change its own? I never enabled it and why would I send 20 bat? Its really hard to get basic atttention since this year started and I seldom get 1 bat a month now.

@kyoshi15 it may seem a late reply but please understand that there are a lot of topics opened daily – I had to see all the 90+ “new posts” before being able to see yours