I've had things replaced on dealextreme a few times, you get what you pay for solid, don't be a dike about it.
Things just break, many users of the official DSTT chips report that they die intermittently. Don't go blaming anything on dark, we can make suggestions about what a good product or deal is, but its not ever our responsibility.
Every flashcart I've bought off DX has worked, if you open a support ticket, perhaps you should request a acekard 2 instead, also I wouldn't trust the micro sd (as I mentioned before).