They are, indeed, odd. This was over a year ago but I applied for the Old Navy Store or VISA card in the store. You know, the deal where you apply and they'll approve you for the VISA, or if not, the store card (or not at all.)
They approved me for the store card so I was happy - I was expecting a total turndown. I got the store card in the mail soon enough but less than a week after that I got the VISA in the mail. And I thought I was not eligible for the VISA.
Later when I called and asked if they could combine my credit limits onto just the VISA (I have a $400 limit on the store and $1000 on the VISA) they said no, and also told me that they were not supposed to give me both. I guess someone made a mistake. They didn't cancel either account, though, so I still have both.
I can't get CLIs at all with them, though, despite heavy usage of the VISA and paying it completely off several times and carrying a large balance other times.