Article R212-4 of the French Consumer Code
The 3° of article R. 212-1 and 6° of article R. 212-2 do not preclude the existence of clauses by which the supplier of financial services reserves the right to change the rate of interest owed by or to the consumer, or the amount of any charges relating to financial services, without any prior notice in the event of a legitimate reason, provided that the professional is required to inform…