Supersonic more SUPERPATHETIC after cancellation!!!!!!

AND still, after 2 months SUPERPATHETIC still wants me to pay for a service I have cancelled and given sim and router back!!!!!!!

DO NOT PUT YOURSELF THROUGH THIS - rather use a company like Vox or another network from the start that are competent and once you have cancelled, it is cancelled!!!!

Dear Valued Customer. Please take note that your account is currently in arrears. To continue to enjoy your seamless Internet connectivity, please make arrangement to make full payment within three (3) working days to bring your account up to date. Your account number S*** should be used as reference on payment. Please click the link to view your payment options

I am SO frustrated that personnel from Supersonic will reply AGAIN on this, but NOBODY takes the action to CLOSE the account!!!! SUPER PATHETIC, so do not reply unless you are prepared to ACTION this!!!!!!!!!!!!!!!!