Standard Chartered Bank — credit card incorrect entries

I had closed the card within couple of months from the date i received it. However, on the portal there is a history of 14 months while the card was closed. All the entries are either "xxx" or "000" but my question is why was the card active till then even when i closed it. What if someone was using the card number somewhere and why wasnt it raised to me or informed to me that the card is still active even after the closure.