Nissan of Union City Lying to make a sale Union city Georgia

I went to this location and had a bad experience. I have poor credit and I told them this before going into the dealership. After getting there I told them what I wanted my payment to be. After doing so and they running my credit they said I needed a co-signer. I didn't want to do so but called my mom to co-sign. Got the May payment 25 dollars higher than I wanted and after 5 hours I learn that my name is not on the loan and they didn't tell me or my mom about the change and was upset when I would not close the deal the way they wanted. I will not recommend you deal with them big waste if time And I can't trust them.