Tinuva
The Magician
First step is always, upload invoice.SO when do you actually pay for the shipment? I got an email today saying they received the parcel and it's actual weight is 0.1kg. A few minutes ago I got a email saying my parcel is on the way and that I should upload an invoice so long on the website. There is no payment option?
Then you will get an email later when you need to make payment, and the payment option will appear.
If there custom fees, there will be another payment option available for that layer if you already paid the shipping fee.