Went there looking for a Ford Fusion I had agreed ...

Went there looking for a Ford Fusion I had agreed to run my credit then they sent me home minutes later after pulling my credit and told me they will update me.. Never got an update I had to message the salesperson I originally had an appointment with that wasn t there to get an update and he told me that I did need a cosigner... why couldn t they just tell me then and there not send me home and never get an update...