Seems to me they owe you what was warrented when you piad for it upon purchase of the rod...and you certianly did pay for it!!!
Seems a pretty standard practice that they traded up for quite a few others....call and talk with them...hopefully a different one of them....I would also print this whole thread out and mail it (A coppy) to them if they just don't seem to grasp how many times they've offered equal or greater value rods in this instance....Good Luck ,Good Sir.