Plusnet have not refunded me months after my contr...

Plusnet have not refunded me months after my contract ended also I am unable to log in to my account fully which means they are also stopping me from gaining access to bills and payments. I have waited around 45 minutes on the pohone multiple times to try to resolve this yet here I am still waiting. NEVER AGAIN PLUSNET! Not doing me proud at all, just embarassing yourselves.