Refusing cancellation AGAIN

My previous complaint has reference submitted on 11 Nov 2017,

After taking out a new contract at another service provider and wanting to port my number I was told my month to month contract also has a 30 day notice period even if it is not a signed contract. I still have not received any feedback from that review.

Today by going into the store my fiance found out my previous contract cancelled in August 2017 to be placed on prepaid, is also still on my name even if it is now a prepaid sim, thus my fiance can't port this prepaid number to her new contract AT CELL C as the number is held by me?

Can someone please explain to me why the cancellation / number porting is such a big issue for cell c as I have done this before with other service providers without any issues.