Hello there,
+1 to Bryan_Loconto - thanks for the initial reply while we got caffeinated this morning. Now that us Helpsters had a fresh cup of Seattle Coffee we are ready to go!
Krakensigns - At this time we do not have the ability to have multiple users on one account though we do hear your feedback and would love to roll it out in the future. Secondly it seems very odd that that they cannot get into your account with the correct details. I would suggest doing a password reset: https://moz.com/lost-password. If they are still having trouble getting into the account with the email ad password you provide them with please reach us at help@moz.com.