Shocking and Disgusting Service from Samsung

I have received shocking service from samsung from the word go. I booked my Samsung A7 into for repairs at Samsung client service at Somerset Mall on the 5th March 2018. I had to pay an assessment fee of R228 so they can assess the damage to the back camera and screen. I received the quotation for the sub contractor, Unitronics for the screen and back camera and asked if I could just have the back camera repaired. Which a revised quotation was sent to me and I paid it in full. I received a call from Samsung on the 19th April to say my phone is ready for collection. When I went to pick it up it was not my phone. Samsung had mixed up the paperwork and put the wrong paperwork with the wrong phone and my phone had been lying in their draw for over a month. Samsung then sent the phone to their now repair centre - We Fix. We fix then sent me another quotation after clearly stating to Samsung I had already paid for the repairs that needed to be done to the phone. We Fix quotation gave me a mini heart attack as it was 3x more expensive and the Samsung was not using Unitronics anymore. Samsung tried to make it my problem that I had to request refund from Unitronics in the meantime I was not my fault that the phone was not sent in correctly. I eventually manage to get in touch with someone at Samsung through We Fix Canel Walk who was dealing with my problem. Tavie has tried to sort out but then his assistance also stopped. After phoning We Fix and Samsung Head office numerous times on my account, Tavie from Samsung gave me some hope on the 7th May (now 2 months later) that I will have my phone delivered to me on the 9th May with all repairs done on Samsungs cost and the will get the money back from Unitronics. The 9th of May has come and gone and I still didn't hear any thing. The customer service is disgusting. I then called on the 10th May again to follow up and now Tavie is no longer avail. so I asked to speak to someone else that could assist. Proveer asked me to send him my contact details so his mobile. Which I did immediately hoping that he would contact me to give feedback. Its still waiting. I called again not he 15th May wanting to speak to Tavie - Still unavailable and Proveer - Unavailable. I asked the receptionist are they avoiding my calls now. She didn't want to answer. I then called We Fix again to follow up if they have received the parts yet or if they have heard anything from Samsung. They had only received the 2 parts and still waiting for the one part which Cherneyd told me that that part was only ordered on the 11th May. 2 days after the phone was suppose to have been delivered to me. I then immediately called Samsung again to find out if the part was sent to We Fix just to be told that Tavie that was dealing with me the last month that it was his last day. It is not the 15 May and I am still with out my phone 71 days later and still don't know what is the delay. I need some assistance and clarity. I have now emailed all parties involved and Wayne Peter - one of the top people in SAMSUNG and now waiting for some kind of response and feedbac****!!!