Hi ​@Jenny Mawson , I am so sorry that you are unable to make calls to 0800 from abroad. Direct calls to UK 0800 numbers from overseas are not possible since iD Mobile and the majority of other providers restrict these calls for users when they are roaming.  This policy is directly responsible for the message you are currently viewing.  You'll need to find another way to reach the number, such phoning a company geographic number, using a VoIP service like Skype or Google Voice, or waiting till you're back in the UK.
 

• Provider policy: UK mobile providers block calls to UK 0800 numbers when you are roaming internationally, as detailed on the iD Mobile website.
• Service restriction: The message "your service does not allow this call" means the call is being blocked by the network, not that you have a poor signal or a specific phone issue. 

Alternatives for calling

• Use a VoIP app: Services like Skype or Google Voice allow you to make free or low-cost calls to UK landlines and mobile numbers from overseas using your data or Wi-Fi connection.
• Find a geographic number: Search online for a non-0800, or geographic, number for the company or organization you are trying to reach. This is often a standard UK number (e.g., with an area code like 01, 02, or a mobile number).
• Wait until you return: The easiest solution is to simply wait until you are back in the UK to make the call.
• Contact the company via other means: Try contacting them through other channels such as email or social media if available. 
  
  -Isa🎀