Hello Diego, thank you for your reply
we don’t use any other plugin to handle VAT.
The exemption was made during checkout using the field that the plugin has and it gives it as valid, I also checked in the order the report and it says valid but when I checked on the VIES website the same vat gives an invalid result.
is there a way to get a report or check a log to give proof of the check the plugin did?
according to our accountant as the vies service gives the vat number as invalid, we would have to pay for the vat that was not charged to the customer.