Headache from Mazda

I purchased a Mazda cx3 from Mazda dealer in Mafikeng on the 22 July 2019 as a brand new.On the the 27 July the car started flashing the Istop and other engine sign.On the 29 July 2019 we took back to Mafikeng Mazda then they said they will dignose and they said it was fine.Then on 10 August 2019 it started doing the very same thing.I then took it back on the 13 August 2019 then they started to give me stories that the car is doing this due to the car tracker and they said I must remove it I then adviced them the bank has instructed me to install it.I have been experiencing this problem I have even contacted Mazda head office and spoke to Dineo and Farani who keep telling me to take it back to the dealer .I have again took it back this morning.Can I please get some help my number is ***