92 Rodeo (transmission Control Module) 4 sale

I have two isuzu rodeo transmission control modules that are for a 1992 isuzu rodeo 4x4 with the 4l30e trans. They have been completely gone through and are under warranty through full logic. I paid $500.00 for one and $800.00 for the other. After purchasing these the transmission shop told me that the original one in my rodeo was actually good so they put it back in and refuse to reimburse me for these two. I would like to get at least $400.00 each for these to pay the transmission shop and I can get my rodeo back. please email me for more info and pictures!!!