Name mismatch

Well; currently unsure how to proceed with this issue but it appears to be a big one. On the commonapp I mistakenly wrote my fathers name besides my last name when it asks for last name.

On the collegeboard Im recorded with my last name only. Apparently a few universities havent connected the dots and view the two sects as two different people. How do I fix this problem?

Any help is appreciated

Contact Common App immediately. I am very sure there is a phone number you can call from 2:30 EST. Alos, have you told your counselor about this? Don’t waste time on CC, you need to get on the phone, send emails, etc…
I would also have you or you counselor (counselor might be better) contact your colleges, explain the mix up, both names that have been used, and that the problem is being sorted out.