You mean it's only the cooler in the box? ASUS is not going to give you a new card nor would they even offer replacement at a cost. RMA is for faulty hardware, not lost hardware.
You may be able to buy a naked card on Ebay and reinstall the cooler but it's going to cost nearly as much as an intact card since the cooler isn't worth very much.
A bus station is where a bus stops. A train station is where a train stops. On my desk, I have a work station…