MISSING RIM CAP!!!!!!!!!

I am still waiting for feedback for reference number ***1. My wife logged a query for my missing rim cap after my vehicle was serviced at Nissan Lydenburg. We sent Nissan and Vanecia 2 follow up emails and there are just ignoring our messages. Where should we service our vehicles if parts go missing when we service with the OEM? Nissan South Africa, Nissan Lydenburg- Please return/ replace my rim cap. I phoned the service department to query and I was told it was not found. Can I please have my rim cap back!!!! Let's see if this review will be deleted like they deleted my wife's review! I am the owner of the vehicle...Can I please get feedback now?