Question about applying for pre approval and your credit score. My wife and I are starting to look to buy a house and we applied for for pre approval and her score came back much lower than anticipated, we thought she was in the low 800's she was came back in the high 600's. That's what creditkarma said at least. So after doing some investigating we found out there was a bill in collections for a few years we had no idea about. As soon as we found out we called the collections agency and paid it, turns out it was being sent to the wrong address. I went to the credit bureaus directly now. Two of three showed her score being 770 and 809, Experian had it at 690. I disputed the charge and they removed it from her record, her score with them instantly shot up to 797. So we talk to the lender again and her score with Experian now shows 814. I don't understand the discrepancy why it's higher with the lender. But the other two still show 680 and 690. So I call TransUnion because I paid for the report from the yesterday and it has her score as 809 but the lender says her score with TransUnion is 690. I tell the girl on the phone and she says they have different criteria when calculating a score. But I told her they said it was TransUnion that had a 690 score. When the Experian score was updated, it instantly improved with the lenders. Can someone explain this to me. It's incredibly frustrating, my wife's credit card is paid on time every month, she's paid off her student loans, she's paid off her car, I don't understand how TransUnion themselves can have an 809 score but the lender says her TransUnion score is 690.