Sales reports and payments are available to you based on when MusicDigi receives sales numbers and earnings from stores. Stores usually deliver these reports monthly, and they reflect sales from about 3 months ago.
So, if your release became available in January you can expect your first report to show in your MusicDigi account at the end of April. Reports for the February sales period will be processed in May, and so on. That's how long it takes before stores send us (or any distributor) the information.
For more information on how to collect your earnings, please visit this article.