Cell C Won't let me port my number

I have been trying to port my number out of Cell C for the last three days. When trying to switch my network, Cell C keeps declining th request even when I follow their prompts.

This means, I have had to spend time calling them going through endless loops with their customer serious centre to be told that they can't help me or they can't guarantee that they will port my number.

Essentially they are stopping me from leaving their network with my number.