You should delete the first import and import the new info ... do not try to import over a prior import as dumb things can happen.
How do I delete a prior import? Do I have to delete each line item individually on the "Review All Your Charities" screen (TT CD version)?
Contact TurboTax support and speak directly with a TurboTax support agent concerning this situation.See this TurboTax support FAQ for a contact link and hours of operation -<a rel="nofollow" target="_blank" href="https://ttlc.intuit.com/questions/1899263-what-is-the-turbotax-phone-number">https://ttlc.intuit.com/questions/1899263-what-is-the-turbotax-phone-number</a>