Cancellation of Contract ***

I have called Vodacom several times & mailed all the required documents I stay on the line for quite some time & get transferred to many different staff members then I am told that they are not able to transfer me to Retentions or Legal & I must call them directly & one can never get through to them I have mailed documents as requested to ********** on the 13/12/2018 Nobody has contacted as yet so I been calling in continuously I have requested the contract for ********** 21 to be cancelled & all the nos listed under the contract as well I would like to use ********** 281 & ********** 615 & ********** 383 as prepaids-the rest of the nos must be cancelled I would also would like a refund for all the amounts debited from my account from the time I have been calling in for the cancellation One just gets transferred & referred but no ownership has been taken