Citibank Credit Card Complaint

Citibank Credit card department,

Unsolicited issuance of credit card California

I had a costco card with -. Apparently costco switched their relationship and now only takes visa. So, during the switch, my costco - - was cancelled and I received a - card. I paid the balance of my account online and it disappeared from my - online portal. Five months later, I receive a call from Citibank collections, looking for $10.00 saying that I had three missed payments. I told them that I had never received any information from them and did n't even know that I had a credit/business relationship with them. They said they had returned mail and never could get ahold of me. They could n't even give me an account number to dispute the charges with the credit bureaus.