Article L221-21 of the French Consumer Code
The consumer shall exercise his right of withdrawal by informing the trader of his decision to withdraw by sending, before expiry of the period provided for in Article L. 221-18, the withdrawal form referred to in 7° of article L. 221-5 or any other unambiguous statement expressing his wish to withdraw. The trader may also allow the consumer to fill in and submit the form or declaration provided for in…