You have an opportunity to increase your credit line with responsible card use and track your credit score each month for free. (mybanktracker.com)
Your bank may increase your credit line as a permanent change on your account or may give you a temporary increase that will cover the one large purchase you want to make. (think-creditcards.com)
Some companies will increase your credit line without requiring you to add another deposit, but only if you've paid your monthly balance, correct and on time for several months. (debtfirms.com)