Sent wrong size!

I ordered this columbia fleece in a size small. I received it today and it was a medium. The tag on the inside of the jacket says medium, and the sticker on the bag it was packaged it said medium, but the price tag said it was a small. The jacket is way too big for me, and I would like to return it. I am hesitant though, because I'm worried that if I return it and order from this seller again I will receive another jacket in the wrong size. Has anyone else had this problem?