Vodacom False promises, No Service delivery

I submitted a complaint earlier regarding Vodacom Online service delivery. Its been 3 weeks and i still do not have my phone. I was **** to by the consultant as they first promised delivery within 3 days. Then they promisdd to keep the phome aside as i was not available for two weeks. And now they say there is no stock. The Vodacom consultant i spoke to said they will investigate and call me back but i am still waiting. There has been no resolution or proper explanation as to why there promises were not kept. Why on earth should i consider changing to vodacom when they clearly dont value my business or honour their word.