And if there is a delay?

www.kefir-kombucha.com strives to send the parcels as soon as possible, using the parcel tracking. As a result, for any delay in delivery or loss of your package can not be blamed on the seller.

Any complaint must be addressed to the Consumers Service of La Poste within three days from the delivery date, via the online form which can be found on the carrier's website:
http://www.laposte.fr/Service-Consommateurs/Deposez-une-reclamation.