So I bought one of your calculators (a T!-83 plus) and when I put batteries in, it worked for the first day, but on the second day, the screen bugged out and died in the middle of my statistics class. I've tried every technique and even got brand new batteries but the screen no longer works. What is your return policy? My order number is 11233 if that helps. Thanks!
in Using TI-83 Plus by

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