PHONE REPAIR TAKING FOREVER

I bought a phone in December 2017, the phone had no problems and worked perfectly fine until late November 2018 when the phone stopped charging and would not switch on, so I took the phone back to PEP where I had bought the phone that was on the 12-13 December 2018. I was advised that I will be notified if the phone cannot be fixed or if there is anything that I need to know and that will be done within +6 weeks, I have been going to the store every month and all the lady who I will assume is the supervisor or manager since the staff always call her to assist me tell me is that the phone is still at the repairs and she does not know how long it will still take or when they will send the phone back. All that I was asking for is communication and now all I want is the phone back as it has been 3 months already waiting for the phone.