U.S. Bancorp Credit Card Complaint

U.S. Bancorp Credit card department,

APR or interest rate Florida

this is such a long story, but I will try and make it brief. I have a credit card from US Bank. It ha a large balance, but I always make my payments. After my divorce settlement was finished, I called US Bank, made it so the account could not be used, and started making payments. On the card they show you - options, - is the minimum payment which takes 20 years to pay off, the next options is a large payment that takes only 3 years to pay off. I took the 3 year plan and for the past year I have made my payment on time and in some case - payments a month. Recently I received a letter from US bank. It said that they looked at my account and determined they needed to raise my interest rate to 24 % I was astounded, why I asked myself, this was unfair, and unwarranted. I called, spoke to several people in different departments. They all said the same thing, there was nothing they could do. I lived in NY for a long time, we would call this kind of practice Loan Sharking. I do n't know how they get away with it.