Hyundai Eastrand-car not serviced

Dropped my vehicle for a service on Thursday (25/07/2024) afternoon for them to service it on Friday (26/07/2024). Received a call from the on Friday (26/07/2024) at 10:18 asking if I am still bringing my car in for service. Advised them that the car is with them already and when I asked them to confirm I will get my car on the same day, they said yes. Arrived at the dealership around 16:00 and they took long to locate the Job Card for my car and when I told them I can pick up the car hasn't been serviced, they say "no sir your car has been serviced" . After searching for the job card and asking consultants, they discovered my car was not serviced. They advised that they can quickly service it and give it to me, I advised that I will not allow them to do a quick job, rather they keep it and service it properly and I will collect it on Saturday (27/07/2024). On Saturday I was given the vehicle and upon arrival, I inspected the vehicle and discovered that the oil is dark, giving signs that it is used oil but the invoice states that the oil was renewed. Inspected the Air-filter and realised that it was still dirty. Checked the invoice, it states that they cleaned but none of that was done.

I am so disappointed and feel ****** as I was deceived into paying for a service they didn't render.