Citibank Bank Account Or Service Complaint

Citibank Bank account or service department,

Checking account Making/receiving payments, sending money Texas

I tried many times to determine why I could not pay the IRS with my Citibank online BillPay. I finally received the attached letter, dated -/-/2015, from Citibank. - - states this service is no longer available for the IRS, as we have encountered servicing issues with them. I am totally OUTRAGED at this response from Citibank! I had to make - separate inquiries to Citibank in order to finally learn that Citibank does not pay the IRS with their online BillPay services. Why did n't Citibank say this in the first place? Why did I have to drag this information out of them? Can Citibank be any more UNCLEAR in communicating with their preferred clients? Does Citibank really believe this is acceptable customer service? I expect Citibank to respond to this complaint with answers to the above ( - ) questions.