MTN MMS Inbox??

[PKruger]

I received a sms from MTN stating:

Y*ello. You have a new MMS from 2783xxxxxxx in your MTN MMS inbox. Subject: X X Account.

This is the first time I have gotten this type of sms. Where is this "MMS Inbox"? Where is it on my S3 and why did the MMS not download automatically? :wtf: