KeyBank NA Credit Card Complaint

KeyBank NA Credit card department,

APR or interest rate Utah

I am deeply troubled because Key Bank raised the interest rate on my business card to 30.24 % for no fault of mine. I have never been late on my payment. I was scammed by a company back in - - and I requested a chargeback. After about 30 days of investigation the KeyBank fraud department approved the chargeback and credited my account. I did not make payments during those months because I did not owe them any money because of the chargeback credit. Then in - - I get a letter from KeyBank that they have reversed the credit and recharged my account the $2000.00 I was charged by this scam company. I decided to make monthly pmnts but on examination of my statement I am being charged now 30.24 % interest and my credit score has been damaged. I called keybank support and talked to - and her supervisor and was told that KeyBank does not lower interest rates and there is nothing they will do about it. I am extremely upset about this. Key Bank has hurt me, cost me money and damaged my credit score.