Vodacom/Huawei *******

Went into Vodashop at Northgate Mall to purchase a Samsung s9+, upgrading from S8. When I got there, the sales person that helped me convinced me to buy a Huawei Mate 20 lite instead. I then told him that since S7 had I been using Samsung, and it suits me just fine. Fare enough the guy managed to convince me otherwise telling how better the phone was than the one I was looking for. I then asked if he has a UAG cover for the phone I always purchase one on the day I upgraded in order to protect the phone. He then said he had including shattered proof and shouldn't worry. We then went ahead with the sale, but could only collect the phone the following day being the 7th of Oct 2018. I then went to the store, and was told the system had not yet approved, then told them I had a notification that it had been approved. The guy then said I should give it a while and would call once done checking. I then went into the Mall, only to receive a call after about 30 min that I should quickly come and collect phone as they are closing the store. I then quickly ran there, and even had to crawl underneath their sliding door, got handed the phone inside box and started pack without even been shown how the phone operates, nor turned on. It was all rush rush. I then went back to the store the 8th Oct 2018 to get now the phone turned on, and of course to buy myself a cover which I was told was available before I use the phone. The sales guy wasn't there on the day. I got helped by the technician that transferred stuff from my phone to the new one. He then told me that covers and screen protectors weren't available as the phone was new. I then told him that the guy that sold it to me said it was available . The technician then said in an honest matter that the guy was pushing for a sale and wouldn't have told you as I was getting upset. So kept going to the shop the whole all to find that they still had no stock, and ended up sending me to an Indian store inside the mall, who also didn't have. So the phone ended up even falling withing the same week as I got inside the car and it hit on the seat rail on volume control leading to the buttons not working straight away. This past weekend on Saturday whilst at the EC for a funeral, the phone showed Software Failed and would not activate at all. I then yesterday went to the store. The sales guy phoned the Huawei rep, and disappeared straight away. The Huawei rep has now referred me to Cresta or Northgate to have the phone repaired and said I could not be helped by Huawei as the phone even has a crack, at the same time telling me the cause is the volume buttons that had caused the problem. I now have a stuffed up phone due to lies and cannot even be helped at the same store I bought the phone a week ago. Not eve my first installment has gone through. What vodacom rep has done to me, including Huawei rep, has broken me dearly! What do I now do with a new phone that has a software that's failed?