Assuming you are in France, why don't you contact the local Chord distributor and discuss the problem with them? Yes, they only appear to handle the lower-end products, according to the Chord website, but I am sure they'll be able to help or at least advise.
Their contact details are as below (though I am sure there must be a spelling mistake in the name of the company!):
L'Execption Musicale6bis rue de Lenglet62920 GonnehemFrance
Range: Chord | Chordette | Hugo | Mojo
Phone: + 0321022925
Fax: 07.60.47.29.25 (mobile)
Email:
here.