With AMCAS, you never know anything. Just keep checking with them to be sure that they got it. You just kind of have to assume that they matched the correct transcript with the correct AMCAS - I am sure its a rare mistakte made. At any rate, the admissions offices will notice immediately if something is goofy. If someone has the same name as you the ods are that they didn't go to the same school, same major, etc.