No customer service

terrible, words can't describe how useless and unreachable they are. None of their 3 phone numbers are being answered. Non of my emails, both to customer care and debtors are being responded or answered. Cancelled contract on 18/05/2022, still being billed monthly, when I returned debit orders via banking app, I get threatened via SMS with legal action, but still no way to communicate with them. After all my frustrations I contacted the installation center who promised to resolve, but still nothing. I have all email proof since 18/05/2022 and numerous case number, still gets threatened by legal action, but no one is willing to speak to me to resolve.