Black Friday Deals, Huge promises but poor performance

On Friday the 24th of November 2017 i received a message from Telkom saying that.. Never to be repeated Black Friday deals. I then thought about my one of my contracts that needs to be upgraded and I've app**** for an upgrade and also a new contract. One of Telkom consultant did call me @ around 13.20 on Friday and went through all the procedures. She also ask me to have R199. 00 in my account as the first payment will be deducted of Friday or Monday the 27 November 2017. I was ask the color of the phone i wanted but they only had black so I've agreed. The mobile phone in question is a Samsung J7 Pro. Saturday the 26 November 2017 i received a message saying that my application has been declined and another message saying that there's No Stock. I'm very disappointed with Telkom as I'm a loyal customer of telkom having 6 contracts. Why send me a message to upgrade for a mobile phone on a black friday deal and then call me and also confirm my delivery address and later reject??? Hence this is a big disappointment. I have decided to cancel my contracts with telkom rather than to upgrade them in future. Very unhappy with the way telkom has treated me.