Dishonest Service Technicians

Hello my name is Barry. I believe i was **** to a couple of times by service technicians at the Mall of africa store. 2 weeks ago i submitted my phone at Samsung Mall of Africa and i wasnt even given any documentation so that when i come back i can prove that the phone is mine. In the first week i called the store to ask about the phones progress i was told they are expecting the parts that very same day. I then called them a week later they tell me the very same story and they tell me that the phone will be ready for pick up friday 12 Oct 2018. I then call them on friday 12 Oct 2018 to confirm if the phone is really ready because i wouldn't wanna travel all that way for nothing, they tell me yes i can come fill in some forms, i get there they then tell me they will send me an email of the document i should fill in and they also tell me that the phone hasn't been fixed because they havent submitted some documents to check if the phone can be fixed under warranty. After that the technician tells me that i should bring the form filled the following Tuesday then my phone will be ready for pick up the following Thursdays after that. What is making me angry and dissapointed is that they continously fed me false information about the phones progress and that they told me to come to the store where i had to spend my money and time so that they can tell me to come back another day, only to find out that they haven't even touched the phone and no parts had even been ordered.

Please help me with this because i don't believe as if my phone will ever be ready soon after all the lies and runarounds i have been taken through.

Barry