PAYING FOR TWO CONTRACTS- GETTING THE BENEFITS OF ONE

I have 4 contracts with cell c. One of which have been going for more than 10 years. I had a Samsung J which I lost. I then got a new contract and got an IPHONE. But I did not want to use the new number which came with an iPhone which I made it very clear before I even took a new contract. And I was advised by a consultant I spoke to on the line that I can swip swap after. Which I did. In the mean time my Samsung contract was supposed to come to an end in January 2018. That is when I realized that the benefits that I am getting are actually not the ones that came with an iPhone but are actually the benefits I got with a sumsung. aND THAT I AM PAYING FOR BOTH CONTRACTS. I THEN CALLED CELL C AND AFTE R I SPOLE WITH A NUMBER OF PEOPLE ON DIFFERENT OCCASSIONS, WITH NO RESOLUTION, I FINALLY SPOKE TO A LADY NAMED SHEILA WHO THEN TOLD ME THAT THERE IS NO WAY I CAN GET THOSE BENEFITS BECAUSE IT IS A DIFFERENT PACKAGE. AND THAT THEY WILL CONTINUE TO CHARGE ME BECAUSE THEY LOAD THOSE BENEFITS EVERY MONTH. I YHEN ASKED HER THEN THAT IF THAT IS THE CASE WHY WAS THAT NOT EXPLAINED TO ME WHEN I SWIM SWAPPED THAT I WILL BE LOOSING ON MY BENEFITS AND AHE SAID SHE CANNOT ANSWER ON BEHALF OF THAT PERSON. MY PROBLEM IS I AM RECEIVING THE BENEGFITS OF THE OLD COMNTRACT SIMPLY BECAUSE IA MA USING MY OLD NUMBER , BUT ALTHOUGH I AM PAYING FOR THE NEW CONTRACT I AM UNABLE TO GET THE BENEFITS BECAUSE I AM NOT USING THE NUMBER IT CAME WITH. I AM ALSO STILL PAYING FOR THE CONTRACT THAT EXPIRED AND GETTING THE BENEFITS OF AN OLD CONTRACT.