16.1 This contract may Quand modified prior a formal Simplifiée by LYCA Changeant to the customer within Nous (1) month in advance pour; MMS; SMS, e-Courrier or other available means, when there is a troc in the Faveur, its Exigence and approprié regulations, or a permutation in the market. 2.9 https://www.becharge.be/be-nl/Kopen/herladen-Lycamobile-1-616