Incorrect Upgrade Phone provided

I called *** to upgrade my contract and went through he process and requested a specific phone. When RAM delivered me my phone, it was the incorrect handset. I immediately called Vodacom and told them of this. They then said that they would organise for RAM to collect to phone within 48 hours. 7 days later this had not been done. I had to call no less that 15 times for them to finally organise to collected the phone. I was then told that Vodacom would contact me via sms in order to get the correct handset. That was 2 weeks ago! Every day I call and get no joy! I am Preferred client being on a Red Advantage Contract and have been loyal to Vodacom for 17 years. I am now ready to part ways with Vodacom