For anyone researching problems with French or Belgian vat numbers: the European database has trouble with these. (so not package related)
Belgium’s (BE) National VIES Component is facing temporary technical issues related to the validation of some Belgian VAT numbers.
As a result, some Belgian VAT numbers are incorrectly considered as invalid.
The Belgian Tax Administration is working towards a resolution. Sincere apologies for any inconvenience.
We will inform you as soon as the concerned issue is solved.
For anyone researching problems with French or Belgian vat numbers: the European database has trouble with these. (so not package related)
Further reading: http://ec.europa.eu/taxation_customs/vies/vatRequest.html