Citibank Credit Card Complaint

Citibank Credit card department,

Delaware

I got a letter for citi card dated -/-/16. In it they stated I was being issued a refund for " certain expedited payment fees previously paid for making a payment over the phone ''. I have two issues with this. Firstly : 1. there was no statement sent reflecting exact time in question. I do not know if its the rightful amount and 2. if indeed the money I paid was & $14.00, there should be interest compounded on said amount. According to the letter, the time cover - - 2009 to present. Were is the interest on my balance for the past 8 years. if I had owed Citi ( Department Store National Bank ), I would have been charge interest along with late payment fees. So I think its only fair they pay interest on money that they held for me for over 8 years.