Contract nightmare

Vodacom disappointed me, I have sim only data contract on top-up with data allocation of 30GB & 20GB incentive & 30GB night owl totaling 80GB, I once ran out of data & purchased 20GB to top up only to realize that the 20GB is a recurring bundle which had increased my monthly bill, I called to cancel the recurring bundles, to my surprise today I received only 30GB & no 20GB incentive & when I called the customer care I`m being told that consultant canceled 20GB incentive & left 20GB recurring & upgraded my contract without my concern, all I want is my 80GB deal to be reinstated as it was with recurring bundle canceled, my contract was not even due for upgrade for that matter, as we are always being told calls are being recorded I will be glad if we can listen to what I requested vs what I got, if this issue is not resolved I want this contract canceled since it was upgraded before its due time & without my concern, the cellphone number in question is *** & I can be contacted on ***