Why are browser and rewards settings changing without my consent?

In November my browser rewards turned off for several weeks, auto contribute turned on and my Brave News preferences all changed. Why?
I still have not received my 5 BAT from connecting to Gemini in September and had an auto post on my Twitter feed that I was claiming my 5 BAT. How are things happening in the browser without my knowledge or consent? I clicked on the connect to Gemini when it first appeared and 2 weeks later the post appeared on my Twitter feed, yet still no BAT for linking my new account.