I had a Shell Credit Card account for decades. The issuer is Citibank. The card was very seldom used, usually on long trips. At some point I believe late XX/XX/XXXX or early XXXX the account number was changed by Citibank and I do n't why. After that point it seems all communication, statements etc., stopped. Not using the card very often it did not come to my attention. In XX/XX/XXXX I used the Shell card to make a purchase in XXXX Ca. for XXXX. I am a person that pays his bills within a day or XXXX of receiving them. Something had happened to cause me to stop receiving statements from Shell/Citibank. Without a statement the purchase went unpaid. I believe that each month Citibank thought I was receiving statements and ignoring them so they added late charges until they closed the account and sent it to collections. Also, they notified the credit reporting agencies, showing a charge off on my report. I discovered all of this when I applied for a credit offer from a retail store. Prior to this point I did receive a letter from the collection agency indicating the charge off from my Shell account. Believing that I had a XXXX balance, I logged into my Shell account on-line and it shows no balance owed. I hought the letter was a fraud scheme. I can still log into the account. I discovered that I am logging into the old account number?? 
The action I have taken : Called the Citibank service center and asked to discuss my bill with the representative, who claimed she could not see the account since it was closed. She told me she would send the statements and I should try to figure out what happened. Really? 
Month later, received statements and discovered the aforementioned information so I called the Citibank service center again to discuss the issue. I was told this time that I would have to write a letter to the CBR Dispute Dept. of Citibank. 
Wrote letter to CBR Dispute Dept. outlining the details and asking for a representative to contact me with a resolution. They have not contacted me after sending additional faxes requesting any type of contact at all. 
After a month of no contact I emailed a letter to the CEO of Shell and the CEO of Citibank detailing the issue and begging for a representative from either company to contact me. 

I am a XXXX retired XXXX XXXX that takes pride in having a pristine credit report and have never paid a bill late. Please help me! 
