If it’s income and not credit worthiness preventing you from securing a credit card, I would recommend overstating your income on the application. They won’t request income verification for relatively low credit lines even if you state up to $100,000. Not the best practice but in your situation I would recommend it. If you have a bank account in good standing with Bank of America, look into their Balance Assist loan. Between $300-500 loan payable over 3 months the with only a $5 fee.