Bad customer service

The worst experience yet. On 25 March 2021. I brought the car in for service. I came in early in the morning and waited for the service to be done as they do not offer shuttle service. Throughout the day, I was not given feedback on the progress of the car. Eventually at 16:10 I was given my vehicle & told that I will be called to bring the vehicle back as they did not have the part for a new lock for a spare tyre which needed to be ordered. upon inspection I noticed that they have not stamped my service book which then required that I take the book in myself and have it stamped. Today, 31 March 2021, I brought the vehicle back at 8:00 am for the fitting of the spare tyre lock (as per the call I received to bring the vehicle back). I have been sitting from 8:00 with no update on the duration as well as the progress from the technicians working on my vehicle. The service is really bad in terms of communication. So I guess I will sit here until 16:00 again