GE Capital Retail Bank Account Or Service Complaint

GE Capital Retail Bank account or service department,

Other bank product/service Account opening, closing, or management New York

My interest rate with - - - card raised without my knowledge. I sent - a certified letter asking my interest charges back and they never responded. I can submit to you all of the paper work if you wish. I just got off the telephone with - now I was told that I was notified of the interest rate increase. This is not true.