Citibank Credit Card Complaint

Citibank Credit card department,

Credit line increase/decrease Delaware

I have sent 5 messages regarding my Macys Private Label Card to Citibank ( after logging into Macys.com and being redirected to their site ) asking them to lower my credit limit after an automatic credit line increase they gave me towards the end of last year. I asked them to lower the line to $2000.00 and to not do automatic line increases. I have never received a response from them after all the secure message and tonight I called them and was on hold for over an hour before hung up. They are messing up my credit score and I want this resolved NOW. They should be fined!