Support cases - Add description to email subject or create a portal

When we open a support case from the web, we do not always remember what each one is for, if it has been open a while. The automated email only includes part of the description, and only in the initial response. This is more annoying when multiple cases are open simultaneously. It would be better to either A) include part of the description in the email subject/responses, or B) create a support portal where we can see everything and don't have to search through emails.

A support portal would also be helpful so we can upload files larger than 20 MB with the initial case without requesting a Sharepoint link each time. It could also let us see and download what we've previously sent, in case we want to easily refer back to something.

Another reason for a portal is the email notifications do not consistently inform the customer when a case is closed. When you unknowingly reply to a closed case, the auto-reply tells you it's closed and to open a new one.