Chaos, confusion, theft of car part at CFAO Mobility Toyota Cape Town

I took my Toyota Rav in for a service at Cape Town City Toyota (CFAO Mobility). I have always had good service there, but clearly things have changed... I dropped my cellphone in the car of the driver who took me home after I dropped off my car. When I got home and realised I didn't have my phone, I called Toyota to ask if they had found my phone and they said they weren't sure and would let me know when that driver got back. I gave them my landline and asked me to call me on that number about any car queries and to let me know about my phone. I called another 3 times but nobody called me back. Usually when my car is being serviced, the service adviser calls to let one know how things are progressing and whether there is anything that needs to be done. When I called for the 5th time to find out what the status is on my car, they said the service advisor was not available but they would call me back. I then got a call back and the woman I spoke to (Puleng) said they didn't have my car. I said I had dropped it off at 6.30am and she said they had no record of it. Eventually I worked out that this was a service advisor from East London who had been given my message. I finally spoke to someone in the CT branch and they said my car would be ready by 2pm and a driver would fetch me. The driver fetched me at just before 4pm and took me through to the workshop. The following day I discovered that the rear front black beading for the bumper, which was on the left front seat when I took the car in (and had hoped they would reattach) was missing. I phoned the workshop but they said they didn't have it. I expressed concern, saying this was theft and asked to speak to a senior manager and was told Mr Little the Service Manager would call me back, but he did not. At no time did anyone take responsibility for their mess ups, failing to communicate and the theft of a part of my car. To me this is unacceptable for a company which advertises that they are customer centric and put their customer fist.