Regretful Makro client. Worst service

My phone(a Hauwei P20 lite) that I purchased at Makro in Strubens valley on the 5th of December 2018 started giving me problems(a no "service message" in the network bar) on the 23rd of May 2019 and this has been a problem for me because I use this device for business. I then took it back to the Makro store I purchased it at on 27th of May where a lady by the name of Sindiswa Sahlulo who told me that they will have to take the phone in and I should return after 6 weeks, this is a problem for me as this is my business phone and I do not have an alternative device and I actually read up on the Hauwei p20 lite model and this seems to be a common problem with the model(the device gets "fixed" then after a few days, hours even it goes back to the "no service" message) explaining this to her she then told me that they can move the 6 weeks to 3 weeks, asked if she could guarantee it and I got no reply. Futhermore, I told her this will still be a problem for me as this is a business phone she then told me to take the phone to the Vodacom repairs in Alberton and that it would take a period of 7 days now. In my confusion I left. i wanted to know whether this is how Makro deals with their clients? I purchased the device from Makro in strubens valley not Vodacom repairs in Alberton so I do not understand as to why I am the one who is suppose to resolve this whole matter. "If defects appear after the sale or if goods are not CPA-compliant, the consumer is entitled to return them within six months. The CPA also makes the seller liable to either repair or replace the goods, or to refund the purchaser." My sister then called the Makro head office where she was helped by a lady named Noxolo who seemed to understand my complaint and told us that the cellphones department was already closed and that She would resolve the matter and call back the following day(28th of May 2019) at 09:00 which she did not my sister followed up on the matter and she was told that she is resolving and would call back this too she did not do. So I ask again is this how Makro deals with their clients?