How to top up a prepaid SIM card? Your SIM card can Lorsque topped up dans your account by clicking on the red button 'Top up SIM card' (displayed at the top of each Recto) or par 'Top-up' in the app. Traditions Nous-mêmes of the following methods to top-up:Termes conseillés products from small Firme brands sold in Amazon’s banne. Discover more