Incompetence and Poor Service

I recently assisted my Dad with his account by downgrading from Premium package to the Family package on 7th October 2017. The activation was successful but there is a constant problem with billing. On activation I clearly stated to the agent that the service is for a single compact decoder, and WITHOUT insurance. However my Dad's service was disrupted due to outstanding amounts as a results of unauthorized insurance billing, not for one, but three decoders. These billed amounts should be reversed immediately and only the R235,00 should be billed on a monthly basis. Please rectify! Also ensure that the service is not disrupted!