Poor service from Discovery Card. Incapable team

Many years ago after a divorce my credit was in a terrible state. My discovery card went under dent review. I finally paid it off last year and received the settlement letter from the attorneys as proof this account has been paid in full. I have now contacted Discovery Card in order to close the account who rep**** saying: "We can’t access your details as your account is under a debt review. You would need to contact them directly in order to have a settlement letter sent to you, so we can close your Discovery Card account."

I already had this letter, so I rep**** with: "Thank you for this information, please see the attached settlement letter and proof of account being paid up. Please confirm that this is sufficient."

This correspondence started on the 18th Jan already with the final information being received on the 21st. I still have not heard anything back. If this is standard procedure then i'm afraid it is just too delayed and deserve 1 star.