Poor service

My phone was handed to Service centre constsntia kloof on the 19th of September to have my s6 edge screen repaired I received no feedback on my phone i drove to the sevice centre to find that it is closed After calling Samsung head office with the voc number 10 times the lady Khanyi Gumede that was assisting me never called me back It is now the 27th of December and after many attempts to locate my phone and after paying R5000 for the repair and also after speaking to Shaun the manager they have not contacted me not only is the phone outdated but their poor service is unacceptable.