unfair use of my money

I have a sim card on contract which entitles me to use 10 gb data per month. In mid September I registered with my Vodacom which enables me to check my accounts. I discovered that there is an amount of R1500.00 owing on this sim card. This was impossible as the number is only used for data. I was informed by Vodacom that the charges relate to a waspa subscription account. I was informed <br> by Vodacom that even though I had never asked for a subscription they had to pay these people and they would bill me to recover their money. They told me that I would have to recover my money from these people. The first company that I contacted to recover my money informed me that my number was not on their database and that they had not charged me any money. The second companies phone does not exist. How is it that Vodacom can pay these people my money without confirming that I owe them anything in the first place. I do not believe that this is legal and I am shocked that Vodacom is aiding these people to ***** money.