i think tower caught on to us because i tried using these codes and theres a prompt that knows exactly what discount codes they sent you and if you are "eligible" to use it. go figure. it will tell you this code was not meant for you. i refuse to buy from tower until they give me the discount i want. why should the new customer be able to use the codes when i already purchased thousands of dollars of stuff from them and cant give ME the measly 20 bucks off? fair is fair i dont care about their marketing strategies.