I recently signed up for a new Marriott account (last week) and everything auto-populated with my mother's information. This was a silly silly mistake. I wasn't aware until now because I'm preparing to make a reservation. I was able to change everything (email address, address, etc) except for the name, which is the most important. Would I be able to correct this as soon as possible? There are virtually no points on this account yet, so I hope it won't be an issue.