16.1 This contract may be modified prior a formal Simplifiée by LYCA Changeant to the customer within one (1) month in advance par; MMS; SMS, e-Estafette or other available means, when there is a permutation in the Prestation, its Modalité and adapté regulations, or a échange in the market. Daarbuiten https://lorenzoewlak.fireblogz.com/65143500/top-secrets-de-lycamobile-belge-herlaadkaarten-kopen