Worst credit card

I am very dissatisfied with Discovery bank. I app**** for a credit card and they offered me one for a small amout. So iam using the credit card to deposit my salay into. However the fees are insane. I am constant in a minus even if there are funds available. They keep taking fees during the month as they wish. I need them to close this credit card. I dont need this nonsense. You are affecting my credit score. Keep the thing. I will get one elswhere where they know what they are doing