Car had to get serviced a week into buying it and ...

Car had to get serviced a week into buying it and it stayed over night. Was told I'd get a call back same day to let me know what was going on, called 3 times couldn't get a hold of my service guy, Ben. Next day called again, still did not get back to me until later in the day i receive a text my car is ready for pick up. No paperwork or details on what was the issue. Also, was told my interest rate was a certain percentage, come to find out it's double then what I was told it would be. My payments came out to more then what was agreed upon. I could go on. Never dealt with a dealership like this before and sure it will be the last time. Would not recommend.