Leased new car, turned in old car (same mfg, same lease fin company), requested the new lease comprehend the impact of the over-mile situation on the turn-in. sales staff acknowledged this on multiple occasions, determined the new lease payment (with the penalty for the over-miles situation), i signed the deal. 3 months later, i get a bill from the leasing finance company stating I owe $3400.00 due to the over miles situation on the lease. In the sales process, I repeatedly asked for confirmation that the new lease payment included the over miles situation and I was told it did. The dealership is walking away from this penalty and are stating it was my mistake and I should have known better. When I asked if the packet of paperwork I received on the day I signed for the new lease would be any different, I was told "no". I believe I should, as a minimum, get some assistance in paying off this $3400.00 surprise!