Do you have existing loans? Your unsecured limit is probably zero simply because your existing loans, whether secured or not, are above your overall unsecured limit. I'm also fairly sure that a high revenue airline with a CCC rating will have a higher cap than a low revenue airline with a B rating. It's just that the smaller airline will have to pay a lower interest rate. My MT4 revenue is currently about 19 million per week, and my unsecured loan cap is around 18 million with a CCC rating. You look to have about 4000 pax per week, which means your revenue is almost certainly under $3 million. So your cap is probably below the ~3.5 million remaining on the initial loan.