No Customer Service for Over a YEAR

No response for over a year. Since March last year I have been chasing a recon of my account.

I have opened official tickets on the site. Asked on the WhatsApp line. Phoned with no answer. Requested callbacks. Emailed. Written here multiple times.

My account is in arrears. I was double-billed in Jan/Feb/March when I moved house. I want a recon on the account with the correct amounts. So that I can settle the account.

If my account is suspended despite these requests, I will take action against Supersonic.

What else do I have to do for this to happen?