Bill Jacobs MINI

I purchased my vehicle from Bill Jacobs Mini on 6/13 and Here is what I had to go through. I arrived around 2 pm and upon checking with the sales person(Marina) I was able to get to the vehicle and test drive it which mechanically worked fine at that time. I went in for paperwork and the car was sent for detailing around 4pm(dealership closes at 6pm) and it was just like car wash, clean exterior with water wiped and interior is same. When I asked, the response was they only had porters for car wash doing the car wash and do not have detailers which i had to accept. Now here is the twist.... When all set, I was getting into the car to get back home, car was unable to start. It was fine when I was test driving for which I had started/stopped like 3 times with no issues. Since it was 6pm, all left and I was thinking on what happened suddenly. I was calling the manager while he was going home, I told him the car wasn't starting at all. It was jump started and was said that since the porter guys were taking the car back and forth for car wash, plates change - battery might got down little and will be back after 30 min drive. I had drive two hours to get back home and tried to start the next day it wasn't starting. I needed a jumpstart so I called my insurance to have a battery service. Upon Inspecting, battery was bad(dead) and had to be replaced. Before the sale, I used to get good responses to my email and after I didn't get a single response since 6/15 as I explained the same the Ronny(Manager). I want to give him some time so he can think about it and do the rightful. I've got a survey question with a phone number(to call if I had any issues with purchase) and I gave a call and forwarded my email from 6/15 to another manager Mark on 6/17 and he said that he'll check and call me back which never happened till now. I started thinking that what magic is done to the battery during test drive where it was fine and dead within two hours where I had to do the paperwork!! This was my experience where I have to spend additionally in less than 24 hours to what supposed to be good per the terms discussed and no help once the vehicle is sold. So Be aware.