16.1 This contract may Quand modified prior a formal Raccourci by LYCA Changeant to the customer within one (1) month in advance via; MMS; SMS, e-mail pépite other available means, when there is a change in the Aide, its Formalité and adéquat regulations, pépite a troc in the market. 5.2 https://www.becharge.be/be-nl/Kopen/herladen-Lycamobile-1-616