Cancellation of Account

I have been trying to cancel my account (Account No: ***2) for almost a year now and I haven't received any response, all I am receiving are statement and debit orders of big amounts from my bank account by Netstar. The last email I sent was to Jiten Parduman on the 6th of October 2015 informing him about this and warning that if I did not get a response i would take this further into social media but there was no response to that as well, It's like they were saying go ahead and see if we care. I hope now that I have complaint here I will get some sort of response.