Auto body repair service near Wilmington, NC

Paid for a transmission service on my 2008 BMW 528i which was told would go the shift issues where my car was going into park at slow speeds…basically not knowing what gear to go into. It was due to no fluid and leaking pan which all were corrected. Then told at visit also needed a battery which I was unexpected but I replaced it too. Just took it back after calling only a day after getting it back with still shift issue. Told some codes were found and reset, and it was shifting fine. Same as first time I was told (passed quality check). Got in the car and again just as before and advised them, car shifted hard into higher gears. So either the mechanic knows nothing to which he’s talking or someone is lying about the work altogether bc the problem is not fixed and it doesn’t take but a drive to decipher it.