Bad Service

I gave my phone in to be repaired in the beginning of November 2017, its not Feb 2018 and i have got NO feedback whatsoever. I called multiple times and even went in to the store to find out what the hold up is, only to be told they are waiting for parts. Why dont they at least keep you updated on the progress ? Why does the customer need to keep calling. I was told it would be escalated however a month has gone by and nothing. Completely unprofessional and I would not recommend them to anyone.