Citi - Visa Review

I am a consumer that pays off my credit card every month.  In December I was out of town for a couple weeks and when I returned, my credit card was past due.  I was charged 39.00 late fee and called customer service for assistance and asked to have the late fee taken off.  I was told it could not be taken off.  I paid the late fee and asked to have my credit card account to be closed.  I e-mailed Citi to see if they would assist and was told the same answer.  I paid off the card and the next month I was charged $1.00 for late fees.  I called and that was taken off of the account.  I feel that Citi should have worked with me after years of being a consumer.