I'm trying to register our non-profit. The EIN # is # 81-3567258. We originally named the foundation Michael R. Sadler Foundation. We subsequently amended the name to Michael Sadler Foundation - with no middle initial. Paperwork was filed with the IRS and all communication we get from the IRS is now addressed to Michael Sadler Foundation. I can't delete the R. on GuideStar. How do I change GuideStar to reflect the correct name?