Poor service - Contract upgrade taking Over 10 days to finalise

I went to Vodacom Centurion on the 26 January 2019 for an upgrade and was informed that they first need to upgrade my portfolio as the phone I requested was expensive, the sales person " Tyo" who was assisting promised to phone me back before close of business that day to update me, I waited and no one phone me back. To date "04 Feb 2019" over 10 days I still have not received my phone, I have never received an initiative phone call from them " Tyo and "Sivash Jagarnath the supervisor" to update me re the upgrade and the status of the account, the only time I would get a call back is when I phoned to check on the status of the upgrade, which I phoned daily twice or thrice and I am still not a happy customer, I am so upset and disappointed on this pathetic service from Vodacom,I am thinking of migrating to other providers.