On the Submit a request page under "Your Email Address" there is the following text:

"Please use the email address associated with your Minecraft account. This is the email address we will be writing to, so please make sure you provide us with an email address you have access to."

This may confuse users. The user is told to enter the email address associated with their account and ensure they have access to it, but many who contact support do not have access to their inbox. The email address associated with the account should be entered in the dedicated "Java Account Email" field.