That sucks. How can I trade it in? Do they just give you a credit towards a new one? The reason I tried to go this route is bc I dont have $600 to spend on a tuner. Any suggestions?

So I just purchased a slp7196 tuner to use on my 99-02 silverado. It was advertised as being never used. I purchased it for $100. When it arrived I watched a couple videos to be able to check it out to make sure I can use it to adjust my shift points and to fix my speedometer due to bigger tires ...