you got a bad used part. you got a bad new part. you got a bad reman part. you paid for a bad install. you got a free bad install. you didnt need a trans in the first place.
you may want to include a few minor details and a description a bit more detailed than "it has a problem" so we can help.
Good idea to update you info so we have a clue as to what part of the planet you are on too.