Disappointing Service

I handed in my Nikon camera at their service centre on the 15th of March. After giving the go ahead and paying for the repair job of R2177.03 on the same day, I was only informed on the 23rd of March that the spares needed were not available and that it would take 2 - 4 weeks for them to import my spares. I was then informed on the 19th of April that my camera was ready for collection. I went to collect my camera on the 20th of April. Upon receiving my camera (Nikon D7560) I asked the ladies to call the technician that repaired my camera so that he could copy my back-up camera (also a Nikon D750) setting and save them onto my camera that was just repaired. The ladies looked up what the technician had done and informed me that he never changed my settings. When I got back to my studio and setup for my shoot after the repair I immediately realised that my setting had been changed. I then tried to save and load my original setting from my back-up camera, but the settings were altered in such a manner that the load option on the repaired body isn't even an option. This has left me feeling highly disappointed as I would now have to move photo sessions once again and travel to Centurion from Johannesburg for the second time in one week, this obviously also has negative financial implications on my photography business. If my concern about my camera setting had been dealt with when I requested the assistance of the technician I would not be in this unpleasant position. This is definitely not the kind of service I am used to with Nikon as I have been a loyal client since 2017.