Transmission fluid leak

A couple months ago I had the transmission cooling line replaced because of a leak. Over the last month I had noticed dark spots on the driveway but didn’t see any oil like the first time with the Cooling Line. In the beginning I thought it was one of my kids cars. So I started to park the Malibu in different areas in the driveway and noticed more dark spots but no oil puddles. Yesterday I looked under the Malibu and seen oil residue on the Transmission.. I told myself No F-------Way. So I took a rag and put it on a stick to touch an area that looked wet, sure enough it was Transmission Fluid. Called dealership today for appointment again. It has been one problem after another with this car. Has anybody else had any Transmission problems? PS. THE CAR ONLY HAS 14,000 + MILES ON IT.