Depending on if your loan was activated and disbursed before or after the invoicing for the current month you will either receive the first invoice during the month of activation or the following month. 

Interim invoice

The first invoice you recieve is an Interim invoice. This means that the invoice contains your start up fee, accrued interest since the loan was activated and invoice fee. Because of this, the total amount of your first invoice usually differs from the contracted monthly payment amount. You can always find your current invoice on My Pages

The invoice for the current month is usually created, and will be available on my pages, after the: 

10th of every month.

 6th of every month.

 15th of every month.