I paid off my credit card in XXXX of this year, at which time my balance online was {$0.00}. I then received a new card in the mail a few months later. When I activated the card, I was told I had an overdue balance. Apparently, when I paid the card off, the billing cycle had not closed and {$16.00} of interest hit the account. I was never notified that the balance was overdue. When I called to complain and resolve this issue, I was told all customers who are overdue receive courtesy calls. When I asked the agent to give me the date and time of said call, he said placed me on hold to look it up and found a call was never placed. I have had numerous agents tell me I have a " good case '' in getting the delinquencies removed, yet it was denied at least 3 times. The interest amount that caused me to be reported as delinquent to all XXXX credit bureaus has since been refunded to me, yet the bank will not correct my payment history to remove the one late payment this interest caused. I have been told I was notified by email, but I do not have said emails from XXXX XXXX XXXX. I told the agent it may be due to the recent XXXX government hack, as I just received a letter confirming that all of my information was stolen in early summer. Soon after trying to fight the discrepancy, I received a letter from XXXX XXXX XXXX that they had dropped my credit line from {$3500.00} to {$500.00}, further damaging my credit as now it looks like my credit usage is much worse due to the lower limit. The letter cited " recent delinquencies '' and " insufficient credit history '' as the reason they dropped the limit on my card. I have been a customer with them on this line of credit for almost 10 years and I have NEVER been late before. My credit limit has been {$3500.00} for almost 5-8 years now, based on much weaker credit and income that I held 5-8 years ago. I feel that they are trying to irritate me into closing my account because it has a very low grandfathered interest rate from when it was opened. My credit score has dropped significantly since all of this and I have lost countless hours on hold with XXXX XXXX XXXX trying to get the issue resolved.