Mr Price

I want to Mr price I want to cancel the airtime I am receiving every month the sales consultant told me I am going to lose my cell phone number but the agent that sell me the product she never mentioned that anything I am disappointed because I have this cell phone number for years before I receive Mr price airtime I am asking myself why should I lose my cell phone number I have for years I never even get the term and conditions till to date I only have this contract with Mr price for 4 months I want to cancel everything and close Mr price account.