Massbuild Incompetence. Did not close my account when I paid it up, now owe money.

In 2020 I paid my account up in full. Today, I try and apply for credit facilities and apparently it says my Massbuild account is in Arrears. I closed this account. I can't get hold of anyone to help me sort this out. This show a complete lack of competence on the part of Massbuild. Clearly someone did not close the account.