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Comenity nuked my newly-minted IKEA account too, then there was a banner on my Overstock store card for 60 days that I wasn't eligible for CLI. As soon as the banner fell off, I requested a CLI on the Overstock account, and they gave me $1500...$7300 to $8800, so all is not lost.
In my case the main value in the IKEA account was the rebate on the first purchase, and free shipping that was only in effect until the end of August, so in all likelihood it would have never been used again anyway, but it did irritate me more than a little.
OP, as previously stated, don't take it personally just as the CCCs don't take it personally when you sock drawer or close an account.
Just take this as a wakeup call. Garden to age your current accounts and only apply for credit that you need.
I have all the credit that I need. I don't have all the credit that I want! So I am gardening until I age my accounts to the point that I can apply for the credit that I want.