Unresolved Credit Card Settlement Letter.

The bank deserves a negative 10 rating. I since settled the credit card I had with them on 30/06/2019 but they didn't update my status with credit bureau. I called their customer care yesterday the 20/10/2020 requesting confirmation document for account closure and 7 of their customer care consultant were sleeping on duty not knowing how to resolve my query sending me from pillar to post. But I sensed arrogancy through out the interaction/ call because they no longer getting any interests/ monetary value out of me now they didn't see any urgency in my matter. They even wanted to act as if they can't trace my account no even after disclosing my ID no to them. These so called big banks forget that there many new role players in the banking sector that are mushrooming & clients reallocate to them since they are innovative & charge less interests.