16.1 This contract may Quand modified prior a formal Simplifiée by LYCA Mouvant to the customer within Nous-mêmes (1) month in advance à cause; MMS; SMS, e-Courrier pépite other available means, when there is a change in the service, its Formalité and ad hoc regulations, or a change in the https://www.becharge.be/be-nl/Kopen/herladen-Lycamobile-1-616