I just bought a tv. I tried it without the 20 at the end, it told me invalid code in red. Added the 20, it said the code was good (and green) but it wasn’t reflected in the price. Changed the shipping to the slow shipping time and the price magically reduced 20% — then I changed it back to 2-day shipping, and the…

I just bought a tv. I tried it without the 20 at the end, it told me invalid code in red. Added the 20, it said the…