XXXX XXXX, XXXX Dear Sir or Madam : I would like to request a credit for interest charge of {$300.00} related to a transaction from XXXX/XXXX/XXXX a purchase of a television from Best Buy for {$700.00}. The terms of the line of credit was 24 monts no interest as long as the {$700.00} was paid in full by XXXX/XXXX/XXXX. By my records I made the necessary payments in order to pay for the television in full by XXXX XXXX, however when I saw my XXXX statement I saw the television had a remaining balance of {$18.00}. I had a perfect payment history because I always came into the store on or before the due date to make my payment. I was n't going to be back in town before my XXXX XXXX due date so I made that payment online. Unfortunately I was informed via email in XXXX that my payment did n't go through. At that time I also discovered that {$300.00} of interest had also been applied to my account. I informed the representative that I made the payment online he informed me that occasionally customers have issues with online transactions apologized credited the late charge and I made my payment. When I asked could he credit the interest charge he informed it was past the required time when I could request a credit. This troubled me because as soon as I received an email notification that my account was delinquent I made a effort to correct it, in fact I used my card after I attempted to make the online payment in the store an no one even informed me my payment was never received. Once again I would like to request a credit of the {$300.00} I consider my self a loyal customer of Citi and Best Buy anything that can be done would be greatly appreciated. Thanks in advance. 
