Be Carefull - Unknown Deductions without subscriptions on vodacom account

Deductions on my Vodacom account without my permission!! I found R900 was deducted a month for subscriptions, I did not sign for. This is unacceptable, I claim for the full amount of payback or credit on my account. Vodacom e-mailed me, but I was so frustrated by the hundreds of people who wanted to sell a contract. Please credit my account!!!