Disappointing service from Landrover SA

I am so disappointed in JLR. My car was booked in for an engine replacement since January 2024. The last time we drove the car was December 2023. We are heading into April 2024 and they have only gotten the parts together now and for the last 4 weeks they have been saying the parts must be picked with no explanation or ETA. Every time I call for an update they don’t have specific information and say they only get updates on Wednesday and Friday, so now I have to wait a week to get feedback on something that is not moving. Why can’t they just contact the UK directly and provide timeous and specific feedback to clients? I work for a Global company and if I need something from our team is the U.S or the U.K I get in touch with them to clarify the information! I think considering how much I paid for my car, in cash, I am entitled to some proper service.