It certainly does sound like you got ripped off. If you can get your money back do it, and try investing in something for a reputable company. The decoys my dad and I have are from Bass Pro Shop and I believe we got one at Wal-Mart.

I don't know what type of turkey you're hunting, (I hunt easterns) but I've always found decoys to be much more effective in the spring when gobblers and jakes are looking for a mate. They can work well in certain situations in the fall, for instance, try setting up a hen decoy after scattering a flock of turkeys and begin calling like a hen would; yelps mostly to bring them in and clucks when they're getting closer, to get them into range. However, I've found in my personal experiences that it doesn't make a whole lot of difference.

I'm sure there are several turkey hunters here who have much more experience than I and perhaps have had a lot of success with decoys in the fall though, so it's certainly worth giving it a shot. It's not going to hurt your hunt any by experimenting with it.

Hope I was able to give you at least a little usable advice.