Delays repairing phone not communicated

On the 2 Aug 2017, i dropped my phone for repairs at samsung smart care center in Constantia Joburg- samsung note 4. The following day i received a call from a lady asking if i had recieved a quote for the repairs to my phone and was told if i don't pay repairs to my phone will be delayed. I paid expecting that my phone will be repaired timeously. I was suprised when i called Friday to find out the progress on my phone to learn that there were no parts in stock. I became patient until today when i called to get progress and the lady who assisted me told me i just have to wait for parts there is nothing that can be done. Now my issue is why was i not informed of the situation around parts because then i could have taken my time to decide if i could wait or not. R2640 LATER NO PARTS NO PHONE NO COMMUNICATION AND I HAVE TO BE PATIENT WHILE I DON'T HAVE PHONE. Samsung i demand answers why this is allowed especially after i was promised by Jeffery repairs manager that i will get my phone back this week by Friday. Either give my phone back OR refund me with interest or replace my phone because i can't wait another week without a phone.