Credit card

After I wrote a review last week and got their response with reference number ***F, they sent me a letter with incorrect number still. I asked that they confirm account number for my Gold Credit Card *** has changed to a new account number which on their letter sent about month ago ends with 5685. After my review they sent me letter with an incorrect account number still linking it to the two new account number but the old account has a mistake at the end instead of a 6 they wrote a 2. I sent them an email to inform of this and nothing to date has been sent to me or communicated, I asked they just rectify the error of a 2 at the end to 6 because the other numbers are the same but am not getting any help. I feel so helpless I even tried sending them the spreadsheet from the debt counselors with my account numbers but still... I am so stuck