Invoicing via Creative Shelter

I am also looking into Creative Shelter. Isn't this a normal invoice (with a breakdown of professional expenses/copyright) and have they paid you after deducting their costs?I have the same question. Via Creative Shelter, you also receive two other invoices. The one invoiced to Creative Shelter with a breakdown of copyright and deduction of copyright withholding tax. So one part at 6% and one part at 21%.
And then you have another invoice that Creative Shelter sends to the customer, on which 21% is calculated on the total amount. These are, of course, two different amounts.
The first invoice corresponds to my own invoice numbering. The second invoice that Creative Shelter sends to the customer is numbered according to Creative Shelter's numbering system.
So it seems to me that I have to enter the invoice with the vAT split, but I can't add the withholding tax for copyright, which means the total amount is incorrect. (Apparently, you cannot enter negative amounts, except for discounts, but the withholding tax on copyright is calculated on the amount including VAT, so that is not possible either).

I have the same question. I can't figure it out.

Update: Dexxter now supports the processing of invoices with copyright! If you search for "Copyright" in the learning center (hat in the top right corner), you will find information about it.