NIKON SA BAD SERVICE

I experienced problems with my relatively new Nikon D7200 camera. Having only used it for around 4 years I am extremely disappointed at the extent of the faults as identified by Premium Group - assumedly Nikon SA's representative in Midrand. Needless to say the costs to repair amounted to R4500 of which I had to deposit 50%. The agreement by the comany was to repair within 2-4 weeks. This period has now expired and all I am getting from Premium Group is apologies for futher delays withou a definite end date. Not only am I extremely disappointed with the Nikon camera but more so with the lack of after-sales service by Nikon SA. I hope to get a speedy response and solution to my concerns from Nikon SA or else I will have no option to seriously consider selling all my Nikon equipemet and change brands