All-in-1 Automotive Will not render Planet Super Saver services and refused a refund Austin Texas

Disgusting customer service on a whole new level I hadn't experienced before. John was just vile--and without provocation. I arrived on time for a 10:00 am appointment for a simple oil change. John told me he couldn't do it today. I said, "But I just spoke with someone this morning and I have an appointment". He goes, "Yeah, I know, I'm the one that spoke to you. My bays are full right now with broken down vehicles". I stated, "Well, I wish someone would have called me to let me know before I drove all the way down here". His response was, "Well this is not a doctor's office. This is the automotive industry". I told him he didn't have to have such a bad attitude about it. That's when he said, "We'll buy that coupon from you" (I had a Super Saver coupon in my hand) To that, I asked to talk to his manager, to which he said aggressively, "I am the manager". He then pointed to the door to tell me to get out! I wasn't even raising my voice at that moment. I calmly asked again to speak with his supervisor or an owner and as he finally handed me a card, he said, "The owner will know all about you before you call him" "I'm going to tell him ALL about you". This guy was trying to intimidate and threaten me, which I just laughed to myself about. What was he going to say, about me, that I was asking to talk to his supervisor? I understand that unforeseen circumstances happen and that sometimes not all customers can be accommodated. I get that. But, never was anything close to an apology for not being able to get me in for my appointment ever given. This guy was just obnoxious and loathsome to deal with. I had my husband call the office back to ask when the owner would be in. Interestingly, John was all nice, trying to defend his disgusting behavior. I can't speak for this automotive repair company in terms of their mechanical skills, but if you want to go to a place that gives a da** about it's customers, steer clear of this place!!!!  I later contacted the owner, Zach Horton and explained the situation to him.  He was apologetic on behalf of John's behavior, but would not "buy my coupon back" which was promised and initially offered by the manager John.  He then stated how he was losing money on that anyway.  My argument was that I am left with prepaid services that I am no no longer able to redeem.  He wouldn't do anything to compensate me.