I am confused by your title. Were you sent a letter of assurance or a letter of appointment? Did you get a Fed Ex package with a big blue folder in the mail? If it is a letter of appointment then I would not worry. If it is a letter of assurance, have you completed any missing items that it may have mentioned?
It seems odd to me that they would give you an LOA at this point in time. Are you waiting on a waiver perhaps? Normally I would expect an appointment vs am LOA at this date. Again, perhaps there are some other circumstances involved?
Yes, I did get a blue folder in the mail - I meant a letter of acceptance. Sorry for the confusion. So, I guess I shouldn't be stressing out about the portal, then. I'm just really excited to attend USMMA and any little thing is worrying me. Thank you for the quick responses!