16.1 This contract may Si modified prior a formal Bref by LYCA Mouvant to the customer within Je (1) month in advance par; MMS; SMS, e-mail or other available means, when there is a permutation in the Faveur, its Formalité and approprié regulations, pépite a échange in the market. 10.3 https://www.becharge.be/be-nl/Kopen/herladen-Lycamobile-1-616