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I actually just got a letter from them starting that they could give me the rate I applied for (which doesn't matter to me anyway because I pay in full every month)
The reasons were
Degrotatory public records/collections
Two few accounts
lack of recent installment loan information
The annoying part about having a lack of installment loans is that I actually own all of the things that people would typically have payments i.e. Car
They don't take that into consideration. That should indicate that the person applying is in good financial standing not the other way around. In Canada they ask you on your credit applications if you own things. I guess they don't do that in the US.
The "lack of installment loan data" reason is always annoying. I get the same thing since I only have credit cards. The mortgage is not in my name since I inherited our home from my wife; I do not own a car so I have no car payments to report; I have no student loans.
I guess I could go and arrange some kind of secured loan and then pay it back over a few months so I'd have something favourable to report that's not a credit card, but I'm not going to jump through those hoops for something that counts for such a small percentage of a FICO score. Heck, even if it counted for a lot more I probably still wouldn't do it, because I'm not going to contort myself for financial institutions.