Temper makes your life easier by just sending one collective invoice. You won't receive invoices from all the individual contractors.
Therefore, a collective invoice consists of multiple invoices that Temper has prepared on behalf of the FreeFlexers. So a collective invoice with 10 different completed shifts, actually constitute of 10 separate invoices for FreeFlexers. This way you'll only have to record one invoice, and saves you the time from doing administration for all these separate FreeFlexers. A clearer overview, and less worries.
You will receive the collective invoice weekly on Mondays and Thursdays.