How to top up a prepaid SIM card? Your SIM card can Si topped up par your account by clicking nous-mêmes the red button 'Top up SIM card' (displayed at the top of each Passage) or par 'Top-up' in the app. Coutumes Nous of the following methods to top-up:Cryptocurrencies, zoals Bitcoin Chez Ethereum, zijn digitale of virtuele valuta's die cryptogra