I bought new Audi A4 2018 from Audi plano and it ...

I bought new Audi A4 2018 from Audi plano and it was a biggest mistake i have done in my life.. i had a very bad experience with the sales , finance personnel from Audi Plano ,they are very rude and Arrogant and they dont know how to respect customers. one of the the sales person Erasmo - he will tell all lies to sell the car.. they will give some discount. during purchase.. but it is totally fraud.. they will get that money indirectly. The interest rate from Audi finance is too high..
They did not send my license plate until two months after the car purchase.. i have called them and followed to get license plate.
My Audi A4 car AC is not worked after 5 month of purchase. when i took the car to service they said that they need to change the wiring to a/c reg valave and it will not cover under the warranty.. i have additional coverage also .. and they said it will not cover and i need to pay $ 525 for just changing the cable .. it is totally frustrating that for a small wire cost $525..is the cable is too low quality ? i never expected Audi car A/c wire will get damage within 4 month from the purchase date . when i asked about why warranty is not covering the , the person from finance is talking very rude and threatening me and asking me to do not come here again.. i am wondering is he the owner of Audi plano ?

I am requesting everyone , please stay away from Audi plano .

i have never heard AC issue is new car.. i think Toyota, Honda, Nissa, Acura,Lexus,BMW is far better than AUDI car.