Business ProfileforPriority Honda Chesapeake

I purchased a car from a seller on 2 Apr 2022. I took it to Priority Honda on 4 April 2022 to have the car checked over, get an oil change and a state inspection. I took the car back to Honda on 5 April to have the services Honda recommended completed. One of the services included putting a harness over the battery. On 11 Apr, I was on my way to the store and the car lost all power. I called a mechanic friend to look at the car. He discovered that the terminals on the battery were loose and that's what caused the car to lose power. Additionally, I noticed my maintenance light was on stating the oil was at 15%, even though I had just had the oil changed on 5 April by Priority Honda. After we got the car started, I went back to Priority Honda to find out if the oil was actually changed. My concern is that the service was not completed even though I was charged for it. I spoke with ***** and ******, service reps. ***** reset the oil counter in the car without ensuring the oil was ever changed. He then checked the oil to say it was fresh, but the guy I purchased the car from had changed the oil, and showed me the dipstick and the blue oil filter that he used when he changed the oil. The same blue oil filter is still on the car. How can I be sure that Honda actually performed this service when they didn't even bother to reset the maintenance light when the service was supposedly completed? Because of the issues stated above from what is supposed to be a reputable business, I find I'm unable to trust anything they say.