Flaticon invoices are automatically generated 24 hours after your purchase has been processed. You can download the invoice document from the tab “My subscriptions” on your Premium account, by selecting the “Check billing history” option, as shown below.
Please note that the invoices will include your billing details along with the payment details, therefore you need to make sure that you enter the correct billing information when creating your Premium account.
Please be aware that it is not possible to amend already issued invoices.
If you change your billing information, the invoices for next payments will show the new information.