Added Services we did not Want

My husband opened a contract with Vodacom 2 months ago and did not add any of the optional extras. Vodacom has added insurance to this account and we did not want this insurance nor can afford it for that matter. We have contacted Vodacom directly on numerous occasions trying to cancel the insurance but we either have the phone put down in our ear OR, the consultant tells us there is nothing they can do. This is unacceptable and we would rather as a result cancel the full contract, are they not concerned about losing customers all together? We really need some sort of assistance with this as a matter of urgency. The number is ********** 680 Kervin Johnson