16.1 This contract may Supposé que modified prior a formal notice by LYCA Ambulant to the customer within Nous-mêmes (1) month in advance à cause; MMS; SMS, e-Courrier or other available means, when there is a troc in the Aide, its Clause and juste regulations, or a troc in the https://www.becharge.be/be-nl/Kopen/herladen-Lycamobile-1-616