Exton Nissan

So I bought a car not even 90 days ago. so far this car has been back there a couple times to have it fixed, it now has something wrong with car, so I call a different dealership to get if fixed, they ran the VIN number and say I don't have a warranty, exton Nissan never told me this nor was I offered a warranty on the car, I got a warranty that covers the wheel and interior but NOTHING else, Talk about getting snowballed, I call them and they say o well you can buy one now!!!!! is this how Nissan operates? They don't car they just want to make a sale? Ridiculous !!!!!!!!!!!! Notthing was explained correctly, who buys a warranty for 5 years on rims but not the car itself