Unhappy customer

I have been a loyal customer for a couple of years now, and had a problem with my alarm system that hasn't been working for over 6 months, of which a technician was sent on the 26/11/24 to my place and he also confirmed that the panel is not working. Yet I've been paying my monthly debit orders for services I'm not receiving, I have been trying to reach out to them via emails to cancel all this be I can't be paying for services that ain't beneficial to me . A week ago another technician came to my place, told him I don't need the alarm anymore, and would like for them to cancel my subscription. He took with him the panel that wasn't working and left.. . But still they're trying to debit my account?? For what exactly because I don't have an alarm system in my house?