16.1 This contract may be modified prior a formal Bref by LYCA Amovible to the customer within one (1) month in advance dans; MMS; SMS, e-Terme conseillé pépite other available means, when there is a échange in the Faveur, its conditions and adéquat regulations, pépite a change in the market. https://www.becharge.be/be-nl/Kopen/herladen-Lycamobile-1-616