Coliseum Lexus of Oakland

I am totally unsatisfied at dealership and service center. There is lots of hassle to pay money. They wanna take a lot of extra money as the name of this and that but we can not get any quality service and hard to reimburse any payment or service. Even I signed everything and they took the money from insurance company or where from they took. They said we call after the technician will back but after one month, they start to say my problem is not covered at plan. Why they don't know about the coverage and why they took my car for three days? After one month, how they can say thats not covered? After one day of purchased my car, I cant repair the small scrached, which was been at the car at time of buy. I had bid problem to say with the manager, service manager etc, They don't wanna take even after one day. If possible, don't waste your time at this dealer as that for service or purchase the car.