Vodacom billing for unexplained things.

I was billed in January for a "Vodafone live" subscription that I do not even have an app for on my phone. The amount I was billed for is R428.65 ex vat. When I phoned Vodacom this morning, they said that it is the same as content services and that they cannot tell me what I was subscribed to at Vodafone live since the subscription has been cancelled. I do not understand this because content services are billed on its own on my invoice. This is very fishy to me. How can I get billed for a service and then you cannot tell me what I subscribed to. Is Vodafone live not a Vodacom service. Sort this out or I will take this further. Its to easy to bill and then not tell me what I was billed for. Get someone to contact me today.