I was shopping for a car and ended up with salesma...

I was shopping for a car and ended up with salesman John who basically told me they help people in my situation all the time. At the same time, directed me to Car Credit Nation. I should've known that the redirect was a red flag. John told me his finance guy was busy and to go online and fill out an application. The next day he told me he would call me after he talked to his finance guy. I never received a call so I called John. Later, I received a "Text Message "stating that the finance gut was working on lowering my downpayment and I should know the results in a few hours. An hour later, John "text" me stating they couldn't lower the down payment. Since, I didn't like the texting when it comes to car buying, I went to talk in person John who stated finance guy was still working. This information was totally different from his text. He told me to patiently wait until the next day and would call me by noon. On the next day, I never received a call, so I called to talk to finance mgr. He told me the very opposite of what John said. I called back to talk to a finance mgr again and somehow John answered and refuse to let me speak to anyone else. I will never know my other options as far as if I could get a cosigner because of the ignorance and unprofessional ism of John who also stated that he was a mgr.