Over debited

I've settled my account with them. Next thing they try to sell me another explorer and I said no. Next thing my decoder can neither record nor rewind or forward... Yesterday I realized they deducted some money from my account. I called them this morning with no luck.. (I'm still waiting for the next available agent and it's been almost 30 minutes). I resorted to whats app, while still on the call and atleast whats app got response but after I told them what I need,they gave me contact numbers and never responded afterwards. Called those numbers too and its always "currently busy' then hangs... These people don't take their customets serious.