On XXXX/XXXX/15 I mistakenly sent a check to my BOA credit card for $ XXXX.I had intended to send this check to another credit card company, having paid my account in full on the card in question on XXXX/XXXX/15. Realizing my error on XXXX/XXXX/15 I logged in online, confirming a credit balance of {$4400.00} on my account. I utilized their interaccount transfer function on the website to transfer the credit to my BOA checking account. On XXXX/XXXX/15 BOA charged me {$220.00} as a " cash advance " fee and subsequently has charged me {$5.00} in interest on XXXX/XXXX/15. I have discussed this with them, through XXXX levels of supervisors. It is acknowledged that no charges or interest should have been charged, but they insist that I must send them a check for {$4400.00} ( which is not owed ) before they can make a correction and later return that same amount. I refused to send such monies for what is an acknowledged bookkeeping error on their part. There is no reference in the interaccount transfer section of the website that any fees would be charged for transfer of a credit.I have been told that I have no further remedies available through their customer service department. 
