Mobile data plans

Some of you asked us how to get access to a temporary mobile data plan, the following offers have been identified. It's not ideal but at least it exists, if you have good tips to share we will update the news :

Orange: 500Mb data / 4G access for one month. 10 €
SFR: 500Mb data / 1h of calls / 500 text messages / 10 days valid. 25 €
Lebara: 2 plans possible / 500Mb or 1Gb data. 5 € or 8€