Shop used wrong CVT Fluid

Have a 2022 Ascent. Had a local shop who told me they use OE fluids change my transmission fluid at the end of December. Fast forward to today I was doing some research and found out they used CVTF-III instead of High Torque LV. I have driven about 1500 miles since it’s been changed. How screwed am I. Haven’t had any issues since the change. Local shop claims the parts department at the local dealer told them it was ok to use. I talked to that dealers parts department today and they said they don’t know why they would have told them that. But the viscosity is not that different between the two fluids so I should be fine but I should still change it to the correct fluid. The local shop is offering to refund me the money I spent on the service with them so I can take it to the dealer to have them do a drain and fill with the proper fluid.