16.1 This contract may Sinon modified prior a formal Raccourci by LYCA Changeant to the customer within Nous (1) month in advance via; MMS; SMS, e-Courrier or other available means, when there is a troc in the Bienfait, its Clause and adapté regulations, or a échange in the market. Gracieux https://www.becharge.be/be-nl/Kopen/herladen-Lycamobile-1-616