As defined by FICO (the leading credit rating agency), bad credit is defined as a score of less than 580. Your credit score may range between 300 and 850, and an excellent or good rating is often when the minimum score is 700. If you have a lower credit score, you may have to pay higher interest on loans and may not receive the best financial offers. One of the best and quickest ways to increase your score is to use a credit card. When you avail of the accurate card and use it correctly, you may be able to increase your score in a few months. Here are some of the best credit card companies if you have a lower score: Credit One Bank Visa Credit Card Several card issuers require you to deposit $200 or more when you apply for a card. However, this card from Credit One Bank is an unsecured product and does not require any upfront payments. You receive 1% cashback when you use this card for groceries, fuel, and satellite, cable, and Internet services. Additionally, you get a $300 limit, which increases as you responsibly use the card. Indigo Platinum Mastercard If you have ever applied for bankruptcy, the last thing you want is to apply for a credit card and be rejected as it further hampers your credit score.