Customer Care very disappointing

I bought a vehicle from the JHB South Branch with a Clean Dekra Report on the 5th of April 2022. I took the car for a test drive and all seemed fine. On my way home a warning message came up and I reported it immediately. I was told to log a complaint online which I did the same day. Unfortunately, the Customer Care service is the worst that I have ever dealt with. I had to make numerous phone calls and left messages for the assigned customer care agent to phone me back on a daily basis. The vehicle was finally sorted out yesterday (21.04.2022) after it was discovered that there was an electrical fault. So today (22.04.2022) I receive a message that my number plates are ready for collection but without a disc???? (What must I do with number plates without a corresponding disc.) Turns out the roadworthy voucher expired. I just do not understand why these things are not explained to you at the time. I can now either do the roadworthy myself and pay for it. Or take the vehicle back to WeBuyCars so that they can arrange it. I must just admit that the Sales guy was amazing. Very helpful. This is my third vehicle I have bought from WeBuyCars and the service on the floor is great but aftersales is very disappointing.