As others have said, the original shop should fix it for you.
HOWEVER, I see you have a 2003. Did you provide the parts or did they? We have seen on more than 1 occasion where the 02 and 03 transmissions are VERY finicky on which flywheel/clutch combo is used. We've had to re-do a few using OEM parts specific for the VIN of the car we were installing.
So any details you can provide would help us help you out.
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