No credit card or loan company can guarantee you an instant approval if you already have high credit limits. If you need a way to get an automatic approval to help raise your credit score--even with a high credit limit---get a secured credit card. With a secured card, you give the company a deposit and they give you a card. Instructions 1 Find a reputable credit card company that issues secured credit cards. Orchard Bank is one example. According to Bankrate, your own bank or credit union is a good place to start. 2 Complete the pre-qualification...