Citibank Credit Card Complaint

Citibank Credit card department,

Billing statement North Carolina

My sears account is closed, however a 30-day late payment is reporting on all of the - credit bureaus. I have always paid this account on time. I have tried disputing this account with the credit bureaus each time it comes back verified and i have not received and proof that I was 30 days late. I even contacted sears and they gave me the run around. I contacted the - and they gave me a - number to call in reference to my account because the representative said she could only view six months back. When i contacted the - number the guy stated that he could not help me and transferred me back to the -. The next representative place me on holding stating that she would look unto it, but instead of coming back on the phone she transfer me to sears online. I am disappointed in sears company no one seems to know anything. If sears or the credit bureaus can not show me verifiable proof that i was 30 days late, then I demand you delete this inaccurate claim from all - credit bureaus.