Marka Tires & Auto Repair

We decided to find service for change oil and tire rotation. We bought a voucher for "Marka Tires and Auto Repair". I did not make an appointment, so they were busy that day and I was told that there is a choice for me to either come other day by appointment or wait about an hour. I decided to wait. They really began with my car in an hour. I asked them to re-learn TPMS after the tier rotation. In all other places we have been before it was done on regular basis without any additional price and it usually takes 5-7 min. Here I was told that it is not included in voucher and it will take about an hour and will cost me $95. I called to my husband and we decided that $95 it is too much for the work that usually is complementary and takes 5-7 minutes (even we do it ourselves without special equipment). I asked Marko specifically that according to the voucher it will be synthetic oil and manager Marco told me that it is correct. During the service I took a look on my car and realized that the oil they were going to put in my car is not synthetic!!! The manager Marco (or maybe he is the owner of the place) noticed that I am looking and immediately stood between me and the car and shielded the view. When Marco moved away I saw that the mechanic removed the box with oil, which he wanted to put in my car and brought another oil in a completely different package. After some time, manager Marco called me to the repair area and showed that they were pouring synthetic oil. I said that I saw that they wanted to pour not synthetic oil, to which Marco replied that he had stopped the mechanic. So, guys if you ever decided to change oil in this place: watch by yourself with your own eyes what kind of oil they are going to put in your car!!! 
After the service is done, I got into the car and saw that some yellow dashboard icon had started to burn. I phoned my husband and he told me that this is a motor icon. I showed this dashboard icon to the manager Marco, Marco told me "that this is motor", I answered "yes, this is motor, but this icon did not glow when I arrived". He told me that he did not believe me but decided to check what it was. It turned out to be an error of the O2-heater controller. I was told that it has no connection with the oil change. I talked to my husband again by phone and my husband told me to ask the mechanic to reset this error so we could monitor if the icon light up again. When I approached the manager in response to my request, he began to point his finger at me and sad that I am lying, and I am a liar! It was insult! I told him that it is abuse (I made step back and I raised my voice to stop him). He told me that it is not abuse. I told him that it was him who was caught with the incorrect oil. He waved to me and left... 
Service with fraud and disgusting insulting attitude to call a customer a liar!!!