We paid off our Citi Bank XXXX in XXXX XXXX and over paid the account by {$600.00}. On XXXX XXXX we requested a refund for which we where told by Citibank that they would mail out a refund check for {$600.00} to arrive within XXXX business days. We did not receive a check so on XXXX XXXX we again requested the due refund and gave our checking account routing & account numbers for a direct deposit. AS of today XXXX XXXX, XXXX we still have not received a refund from Citibank. We recontacted today XXXX XXXX, XXXX and again requested our refund. Citibank account manager XXXX advised that she has opened an investigation into the matter. This is not acceptable. 
