My rewards disappeared when I tapped a Notification

It looked like there was a notification toward the upper right if my browser, so I tapped it. A pop-up came up saying my account was 0 because I had just donated 6.00 to Faceb5à, What the heck? I’ve never even heard of donating, and Facebook is the last site I’d donate to. I’m on disability, and I’ve been waiting and waiting to have enough rewards to turn into real money. How can I stop it? And how did it happen?