16.1 This contract may Sinon modified prior a formal Bref by LYCA Animé to the customer within Nous-mêmes (1) month in advance dans; MMS; SMS, e-Correspondance or other available means, when there is a échange in the Prestation, its Clause and applicable regulations, or a permutation in the market. ) https://www.becharge.be/be-nl/Kopen/herladen-Lycamobile-1-616