If you want to use the IOS/RCI procedure as a foreign company, you must first of all have an enterprise number registered in the companies database of one of the following countries:
- Netherlands
- France
- Germany
- Luxembourg
- Italy
- Spain
- Austria
It will also be important for your customer to be a Belgian professional, with an enterprise number registered in the Belgian CBE database. The invoice in question may not have been contested by your customer.