Matrix is *****ing everything about me

Matrix is *****ing everything about me.I had beame device which was falsely advertised and poorly installed in my car, I wrote 5 emails to their customer care in October 2024 but there was no response. I asked for the call recording of me talking the contract as was disputing it and they promised to make it available to me and even said it was 45 minutes long but it was never made available to me. When they called me on 30 may 2025 they said they have listened to it and apologized for the poor service they had subjected me to. The lady then told me that they have terminated my contact with immediate effect on the 30th of May 2025. To my disappointment on the 4th of June 2025 I received a statement of the very same account showing that it is still open after I had asked a PDF letter confirming the termination of the account as per the email I received on 30 may. Even on experian and transunion the account still shows that it is open. This is causing problems on my side