You probably know that the Green Dot Moneypak card deposit works as collateral, so your credit limit will always be equal to the amount of your deposit. If you need to increase your Green Dot Moneypak credit limit, just add more money to your security deposit. I advise you to read more about this in the Green Dot Moneypak reviews. If you use Green Dot Moneypak responsibly, your credit rating should increase enough to switch to another bank's unsecured credit card.