All she would say was that nobody could state that as it was up to the individual country.
Absolutely correct, the CAA can not speak or answer for the actions or interpretations of any other NAA. As others have done, it is wisest to contact each NAA whose airspace you plan to use and carry their replies with you as that will be the only persuasive bit of paper to any inquiring authority over there.
And do not forget the VAT paperwork -- or bring lots of cash
