Requested cancellation on Netstar Go

Requested a cancellation on my Netstar go in May however it still wasn't cancelled as I'd be billed for it on a month to month. I called in every month an still wasn't assisted. I called in earlier in September an was told it takes 30 days to cancel it. The consultant that assisted me in May sent an email, even cc'd me on it to asked for cancellation. If it takes 30 days for it to be cancelled, then by June it should've been closed. Why then am I billed from June till September? Their Team Leader requested that I sent him an email an that he would resolve the matter. Up until now I haven't received any communication from him and yet im receiving emails that say they've handed me over.