Eddie I think you received some good advice here. I personally have had no trouble with WAMU. They have gradually increased my CL over the last couple years and even recently as a week or so ago lowered my APR because I called and asked. Perhaps wait another payment cycle and follow through with them again. Especially if you have paid down more of your balance.
For those who were bashing the poster MOREMONEE4MEPLZ I must say I agree with him/her to a point. While MOREMONEE4MEPLZ just assumed eddie was maxed out, which was probably wrong because he didn't mention that, I do think it is wise to not max out your cards nor is it wise to not pay them down to a bare minimum over time.
So I would only request a CLI when I've shown I can be responsible with the card limits I do have. But that's just me.
I do think it's a good idea to get a CLI when you can because it should help your credit unless of course you max out that 30k CL card and take 10 years to pay it off...lol.
Just be smart I guess is what I'm trying to say.
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