If your parcel is being delivered to anywhere outside of the UK you will need to email a copy of an invoice (for customs clearance purposes) to [email protected]
This invoice needs to have the HS Commodity Codes for your goods on and these can be found here: https://www.trade-tariff.service.gov.uk/sections
Customs and Excise in the destination country will use this invoice to decide if they will charge the receiver and duty or taxes, which are payable by the receiver in order to receive the goods.
For deliveries to Brazil you will require a CPR number for the receiver.