Impossible to cancel the contract and terrible client service

I've never dealt with a company worse than Supersonic. I have been trying to cancel my contract and Supersonic refuse to help me or engage with me.

On July 5th I requested that my line be transferred to my new house. Your website and the agent on the phone confirmed that there is supersonic fibre in my new complex, and we completed the transfer request telephonically.

11 days later i got an email (in my spam folder) to say Supersonic fibre does not actually exist in my complex and they cannot help me.

I then try and cancel my contract and Supersonic refuse to cancel it at the end of July because of the "one month's notice" basis they work from. They now expect me to pay for my fibre line next month and I no longer even live in that unit.

IF the agent had correctly informed in the beginning of the month when I had phoned for a transfer then I could have cancelled my contract then. Instead I was only informed in the middle of the month. I think this is extremely unfair. You are unfairly (and forceably) milking money from your clients at YOUR fault.

I have tried talking to numerous people and even asked to speak to a manager, and as per usual supersonic "promises" to give me a call, and never have they called. They dont even reply to the cancellation request via email.