Home Loan approved last week with 680 credit report but now credit report shows 636?

I was approved last week for home loan at mid credit of 680 and I noticed their were some inaccurate items on my credit so I challenged. Now my credit is at 636? Wow, that's what I get for being honest:( My question is, Since the Loan Office has my original report that shows 680 and I did receive letter to make offer for home "Will they pull my credit again if I buy within 30 days?