Honda of The Avenues

I just purchased my 2nd new car from Honda at the Avenues in February. I have no revolving credit so I only was approved for an interest rate of 7%. I signed a contract to purchase the car with an 84 month term through Ally Financing. It has been almost a month and I haven't received anything from Honda or Ally about making payments, which are due in less than 2 weeks. Apparently, somebody in the finance department at Honda, switched my financing from Ally to 121 Credit Union at 1% higher interest rate. I was never asked or notified of this change in financing. My monthly payment has gone up almost $100 due to this switch. The worst part about the entire situation is that I have been calling Honda at the Avenues for over a week now and left numerous messages because there finance team are always busy when I call and nobody has the courtesy to call me back. It is totally unprofessional and I will never buy another car from this shady location.