I only have experience from years ago in my childhood trying to take guinea pigs to the UK (from North America) for a year. The UK is of course no longer in the EU, but at the time they required 6 months' quarantine. We thought that was pretty outrageous, but 'no exceptions, not even for animals of one cell' was the response. We had to find homes for our guineas for a year, not totally easy at the time.
Much later, but before Brexit, my parents moved their dog from N. America to the UK and could only do that by spending 6 months with the dog in a different EU country or leaving the dog in a special quarantine station in the UK for 6 months, my parents chose the former. Basically, the UK meant that they would accept the word of a vet from another EU country that the dog was rabies-free but they wouldn't accept any kind of guarantee from a 'third country' (non-EU country). So regulations may vary by EU country? I'm sorry you're having such trouble - it sounds as if the person you contacted is not being very helpful. I'm sure you checked, but it's important the person knows that you want to move the guineas over for non-commercial reasons.
I don't know if airlines flying out of The Philipinnes allow small animals like guineas on board? If so, it's hard to believe they would need to charge 9000 US dollars or thereabouts. And even if they had to go in the hold, I can't believe it would be
that expensive either. I do remember from when my parents moved their dog over to the UK, they were warned about possible problems in the hold - "not a guarantee your dog won't die of cold". Much as I always loved my guinea pigs (I don't have any anymore), I wouldn't have put them through a transatlantic flight especially not in the hold. Even tho animals in the hold are put in a separate place from the 'general' luggage. That's my personal take, it's obviously not everybody's, but maybe something to consider? (Admittedly, I'm a nervous flier. My parents' dog was actually on
my flight back then, I brought doggo to the EU, but giving up a large dog for the hold felt easier than it would have been for me to hand over a carrying case with 2-3 guineas in it. Not that the dog thought so.)
I found this link
Travellers' points of entry with lists of all EU country regulations. I'm sorry if you maybe already have the link and so not helpful. The entry for Poland is at least on topic, which e.g. the French one isn't.
There's information here too
Veterinary Inspection | Główny Inspektorat Weterynarii but even in the English-language version it's mostly in Polish and I don't understand a word. It's confusing to see that these info pages all seem to refer only to 'dogs, cats, ferrets' as if there are no other types of pets.
Sorry so long, not good at writing compact information. I hope somebody else can give you more helpful and hopeful information.
