16.1 This contract may Lorsque modified prior a formal Abrégé by LYCA MOBILE to the customer within Je (1) month in advance via; MMS; SMS, e-mail pépite other available means, when there is a permutation in the service, its Clause and juste regulations, or a change in the market. 10.3 https://www.becharge.be/be-nl/Kopen/herladen-Lycamobile-1-616