refusal to cancel my account in the legal 1 month cancellation period

I have sent my cancellation on the 1st of November, i called in countless times to speak to someone to get some form of an acknowledgement but nothing, finally get through to someone and they tell me that the email address for inland which is stated on the website is wrong and i must email someone personally, i do so only to be told my last day is another month after my cancellation. This is unacceptable, i have put a stop on the debit order, feel free to try hand me over i have given my legal 1 months notice. I know i have been kept on so that you can debit me for 2023 radio license as i was sent the invoice, again i will order the bank to do a reversal on this, i want to change provider to someone that shows up instead of calling when my alarm is going off.