I m not satisfied with a service received last Sat...

I m not satisfied with a service received last Saturday. I booked an appointment for two reasons: oil change with regular one, and an issue with noise producing by my car when it s moving on high speed (100 Kmh and up) with the noise amplifying when turning sterling wheel to the right.
I arrived on time at 10 am and described all the stuff to the service employee. After 1 hour and a half of waiting I noticed that completely nothing was done to my car. It was just standing all the time with an open hood.
Than I came to the service guy and said that I have no time to wait any more because my next appointment, and asked only for oil change but with the regular oil but NOT with the synthetic one, and asked to provide me with the shuttle service to my bank appointment. At the same time mechanic came and said that he needs to do a road test to figure out the nature of the noise producing by my car.
Finally We agreed that my car will be serviced including oil change and road test for noise check while I take care of my private businesses.
When I came back to pick up my car I was informed that many services had been done including SYNTHETIC oil change but no regular oil, and also no road test had been done as well.
That means that noise issue remains unresolved. That also means that I paid for the service $300 which I didn t want initially and didn t receive the service which I did expect.

*Update: Today, on November 22, The issue with a noise (bearing on the front driver side) producing by my 2014 Outlander was identified and fixed (thanks to Rhodel the mechanic - he is really the professional guy) during my second visit after the road test and inside the shop inspection was conducted. During the waiting time at the shop, which took more than 4 hours, I noticed some promotions placed on the coffee machine in the waiting room. Among them:
0% financing on 84 months, $2300 no charges for all-wheel control option on select models. When I asked the seller about that he was quite surprised and couldn t explain nothing sensible about it. Instead he said that finIt shows clearly that Vicar Mitsubishi isn t a place where you can trust...