Too *********** to cancel their overpriced “service”

Want to cancel my MWEB contract - constant unjustified price increases have made them uncompetitive. They don’t answer their phones, and the Bot is useless. They give out 2 email addresses: one is out of service with emails sent to it returned undeliverable; and the other gives auto-reply that they will respond writhing 24-48 hours. But they never do. In 2 weeks I have received 3 successive such auto-replies and still nobody at MWEB has bothered to contact me. They are so useless they can’t even terminate their overpriced abysmal “service”.