A car dealership who botched a warranty repair on my vehicle is stonewalling me - once they realized the error was likely to cost them $2k - $3k, their service department deleted my file and began claiming no evidence exists that I had ever been to their location. I got the scheduling department to confirm my appointment and just found my location history for that day showing that I was at the dealership right on time during the appointment. Going to send this to the manufacturer's corporate complaints departments. Thanks for the heads up.