I am in france when i normally am in the uk. Data roaming on and data was fine until today it keeps "refreshing sim data" and then taking ages to reconnect to data.
Welcome to the Virgin Media community forums Zain14732
Sorry to hear you're having issues with your sim card and hope this isn't spoiling your time in France.
Please could you try the below to see if this works to get your sim behaving correctly.
Please give this a try and let me know if it works?