Vodacom refuse to port my number. Vodacom representative mocks me over the phone

I have been trying to get my number ported away from Vodacom to FNB Connect for a week. FNB Connect tell me Vodacom refuse to release the number. It's a normal prepaid number and I have no accounts outstanding with Vodacom. When I called to follow up on the port after a week of nothing happening a ****y person from Vodacom tells me they will not port my number saying that they can offer me a better deal than FNB Connect. When I tell him that FNB connect gives you free minutes, data and sms's this person laughs at me on continues to refuse to port my number. He also tells me that nothing from FNB is free and that he can offer me a better deal. absolutely disgusted with the delay and stall tactics from Vodacom. Thye are very close to breaking the law by refusing to port my number.