Kia Vereenining, - slow delivery of service

Send my car in for a full evaluation on Friday 6 February 2026. I accepted the quote of items to be replaced on 9 February 2026, which included apologies waiting for drums and oil seals(gearbox. I queried on 20 Feb and was informed that they are still waiting for the drums. I contacted them toady 4 March and was told that they are still waiting for the drum from the factory. Was told that maybe on Friday.. Surely this cant take that long. What happened to the customer service. In this case there is none. I the part did not arrive why was it not queried and send via courier???? I am really fed-up.