SUPERSONIC IS BAD NEWS!!!!

I cancelled my fibre line on 01 June 2020 after which I received an email of recognition of the email and with the message that an agent will contact me. Nobody contacted me. After a month (1 July 2020) I phoned to find out whether the line has been cancelled, because I went to another provider. I have been on the phone since 1 July 2020. If I was lucky to speak to somebody, it was always a wrong person and he/she cannot help me. Put me through to somebody else. Waiting ages for somebody to answer the phone. It is going on like that till today (7 July 2020) and still nothing has been done and I do not have any answers. Some of them made promises to phone me or send me an email confirming the cancellation - still haven't received anything. You can not get hold of a Manager - always in a meeting. No other telephone numbers, except of call centre, is available. SUPERSONIC IS BAD NEWS!!!!!