Vodacom is unfairly billing me for a service that I do not want (Tinder)

I have previously wrote a review after been billed by Vodacom for Tinder at R199 per month. After receiving a link via sms from Vodacom I went to nearest Vodacom branch (Dihlabeng Mall,Bethlehem) and ask them to assist me in unsubscribing from the service. I am still been levied for the service that I am not using and do not want . Vodacom is billing me and I am not going to pay for it. This has been going on for four (4) months, thus R800.