Misrepresentation to get sales.

I have been with vodacom for the past 18 years, and always had to change my numbers every time i had to upgrade my contract, I have just recently upgraded my contract on 08 September 2015. I've got 2 contracts with Vodacom and 1 prepaid line that vodacom is failing dismally to swap the number with my contract number. the number that i have upgraded belonged to my modem, so whats the point of having 2 contracts but still have to buy airtime for my prepaid sim that cant be swapped with my modem number. <br> <br> On the phone i was told different stories and told that yes it was possible to swap the numbers but i should do it within 24hours after i get the phone. now that the handset i wanted has been delivered this morning 10/09/2015, I'm being told that its impossible. Had i known it was impossible, i wouldn't have even bothered to upgrade in the 1st place because i really don't want to change my number anymore. Why should i suffer for something that I'm paying for??