Not helpful

I've just been given a offer for a new job, which includes a big phone allowance. I currently have a contract with vodacom which is nowhere near what I need for my job. I would also like to keeo my number becauseive had it for 12 years. I have 7 months left on my current contract which I want to pay off and move my number onto the Red Advantage contract, but no. Either I must open a new contract, or move to a different service provider! What ******* service. I want to move to a contract 5 times my current one, but they won't help me