Not cancelling as requested

After asking, on 29 May, to cancel my account, quoting exact words used "Would you please close my account. Cancel subscription and all other costs involved." There was still a charge trying to go off my bank, and now I'm getting emails and sms's that my insurance is outstanding on my decoder. How can you still charge me, when I specifically asked that all other costs also be cancelled. I have again emailed, to two different email addresses, on 26 and 27 June and none of the two has responded. This is very unacceptable, The decoders are in a box packed away, and you still want to charge me for something I asked to be cancelled.