Can they darken a deck stain color?

I am getting ready to stain my deck, it's prepped and ready. I opened the 5 gallon bucket and it is not semi transparent at all!! We put some on in a small unnoticeable location and it is way too light and doesn't appear to be what we asked for. It is Behr Premium deck stain, tint base 5077 in cedar. So I am wondering what my options are, I don't want to spend another $100 on aa 5 gallon drum of stain. Got it at H*** D**** and am wondering if i take it back will they exchange me for the right thing? Can they darken the cedar color to a different color? HELP!!