Yeah, the shop has the right to charge labour for swapping parts to the new frame. Some shops don’t, so it’s just your luck. The bad news however, is that there have been a few standards changes on GF frames recently, so it is likely you will need a new headset, cables and possibly bottom bracket/chainset (the new high end frames use press-fit bbs and therefore need external bb cranks). Also most warranty frames are disc specific, so if you run rim brakes you will need to upgrade. These parts are all chargeable… Sorry to be the bearer of bad news!