Closed
Description
The two-letter country code for Greece is GR, but in VAT id's in Europe Greece uses the EL-prefix instead.
https://en.wikipedia.org/wiki/ISO_3166-2:GR
In our code we used this list to compare to the international country codes and because GR != EL this obviously failed: https://github.com/DragonBe/vies/blob/master/src/Vies/Vies.php#L63
We will now take the list from listEuropeanCountries and make sure we convert this, but opening this here as a note. Maybe we should note the exception in a comment in this method, or note that EL is not the international code for Greece, they just use that as a VAT prefix. So in a sense the method name is misleading...
Thanks for a great library!