Incompetence

On the 29th of April 2019 I took my car to Joburg City Ford Newtown to service my car and to have the engine light checked. on the same day my car was serviced but the fault regarding the engine light was not resolved, i advised the guys responsible my car at ford that before i fetch my car he need to take it for a drive to see if the light goes on again. he called me back after some time and advised that the light went on again and that the PCM will have to replaced. and the part will have to be ordered. on the 3rd of may i was advised that the part have arrived and i will receive my car in due time. On the 6th and the 7th i haven't received any feedback regarding my car and on the 9th i got a call from Tracker advising me that my battery had been removed which gave me the impression that they only started working on my car on the 9th, thereafter i was advised that the part was incorrect and a new part had to be ordered. today is the 15th of May and i did not get any feedback from them as yet. i sent my uncle to go and find out about my car they advised him that Ford Does Not Manufacture the part anymore but i have been told that the part was ordered. i not happy with their service as my car have been there for too long.