HORRIBLE CUSTOMER SERVICE FROM THE MERCEDES-BENZ FOUNTAINS BRANCH PRETORIA

I drive a GLA 220, 2016 model that was booked in for repairs on the 25th of January 2023. My service agent is Charles Nyland at Mercedes-Benz Fountains. The car was booked in for repairs and I was told a week later and no later than 2 February 2023 that it would receive my car because they are waiting for a relay part that must be replaced. Now we are on 6 February 2023 and Charles can’t even tell me when my car is likely to repaired nor when the so-called relay part will be delivered and what’s absurd is that he is now giving me attitude and giving me telephone numbers to call Mercedes Benz and find out when they will deliver a part that he ordered. What kind of service is this and if this how they treat their customers pls return my car so that I can get rid of it and never associate myself with this brand ever again.