I submitted my application a few minutes late!

ItsJustSchool
Sun, 02 Nov 2014 07:43:45 +0000

I would not tell them about the mistake. Either let it go or email them a completely satisfactory copy and ask them to replace what was submitted with that. Don’t get into what the corrections were, apologize for it, or anything of that sort- just request that ‘A’ be replaced by ‘B’ as you noticed some typos.