Complaint I paid and they left ******* in my car they found it clean

Nissan Germiston McCarthy I'm not happy with the service I received, I bought my car the and ever since I have been serving the since 2021. I never had any problems till today, I booked on the 2026/01/02 I went on the 3rd I was told they can't help me because they can't verify with my insurance of which all that could have been avoided ask me over the phone and let's sort out everything. I didn't know insurances doesn't work on weekends only during the week I rescheduled for Monday 2026/01/05 my car was not on the board but the was only two car on the board from 08:30 am I was the till 17:15 pm the lady apologized I know Brian use to give an efficient service. I blame the workshop people, it's impossible to book a car in the morning 8 hours later I'm still waiting. Brian use to tell them to work now they take advantage that it's only ladies working the in a department dominated by man and this ladies must look bad. I didn't get my invoice for the service because it was late, even now it's 22:50pm I haven't received the invoice, worse part those guys found my car clean and they left old parts with dirty filters and dirtied my carpet. Instead of my car being number three on the board it was number eight how so?... I bought a fan belt and paid R700 for labor which is unfair to me sitting the, the whole day in an 8 hours shift if I was at work I was gonna get a pay. I reffered one of my colleagues to you guys and I will never do that again. The was only ten cars for service and you couldn't do justice to give the service we deserved. Those ladies tried to apologize by giving us all sweets but I still feel the management has poor planning and action plan. How much time dose one mechanic have for a minor and major service. If is 2 hours major service you can't call only two people you need at leat four for 10 cars minor service maybe 1 hour two is OK then try to balance. But we can't wait for 8 hours for our cars we pay for a service and a service is what we expect from Nissan. I have been to Honda and Ford and I tell you I will drop the car 7:00 by 12:00 is out no hustle no stress but you guys are dropping the ball now I'm disappointed. I don't even know what was done to my car, was the hand brake cable adjusted or not, was the brakes changed or not cause last year Brain said they are still OK no need to change them. The was no time for me to get all the feedback. The workshop people you failed me. I missed two appointments cause I thought I will be done by 13:00pm hence I was the early in the morning