Ridiculous!

I am immensely annoyed with Vodacom's service (or rather lack thereof) today. I called to do an upgrade (actually a downgrade to a smart s+) and everything was fine until I was told that my credit score is too low for the phone that I wanted. I allowed the agent to send a request to Acquisitions, which will take basically a week because today is Friday, and then called back because I searched online and found this to be a frequent issue for many consumers. I was informed that there is nobody higher up that can assist me in expediting the process and that there is no way for agents or consumers to contact Acquisitions. I asked whether I am basically stuck and was told yes. What's worse is that there is no guarantee that Acquisitions will provide me with a positive response. I have an excellent credit score. I do not understand why Vodacom's system is saying otherwise and would like this rectified please.