National General Insurance GMAC Bait and Switch Winston-Salem NC

I received a quote from National General (GMAC).  I switched to them and paid the down payment.  After signing up for a policy, they did the typical bait and switch.  Then emailed me an updated payment schedule with much higher fees than they quoted me for.  Now they say they have contacted me via email or snail mail instructing me that my rates would increase if I did not provide proof of my prior insurer.  That is false and a lie that they contacted me and shared any information to me that my insurance premium would increase if I did not contact them and provide proof of my former policy.  It's bait and switch, and I wouldn't have switched to this company if it weren't for them quoting me a regular lower rate.  They just raise your rate and claim that they contacted you about it, which they did not.  Typical bait and switch.