I have a cash rewards credit card that I got in jan with a 3k credit line. I asked for a credit line increase several times between then and now but was denied. My last try was on 03/10 and I recieved my letter and it said my credit score was 640. So I sent a secure message asking for reconsideration and they replied with a few hours with a 5K credit line. I asked for 25K but I'm happy with what they gave me. Navy federal is awesome.
