ovhSubsidiary=EU bad request

[nipil]

The https://eu.api.ovh.com/console/?section=%2Forder&branch=v1#get-/order/catalog/public/eco API endpoint lists EU as a subsidiary

But using it in the API test returns a Bad Request

{
  "class": "Client::BadRequest",
  "message": "invalid ovhSubsidiary"
}

Expected result : I would have though that EU stands for Europe, which would mean you would a catalog answer including all region country.

Additionaly, where can we get a dynamic list of all list of all available subsidiaries for a region api, to cross check this kind of API "constants" ?