Update October 15, 2019:
We’re really sorry that we let some of our customers down on Sunday. We will be automatically applying compensation to the Vodafone accounts of affected customers, starting today.
We are very sorry that yesterday, some customers could not use data or calling services when roaming abroad. This was due to a technical error, which we have now fixed. Any affected customer should restart their phone to ensure that services are resumed. As a result of the issue, some customers are receiving billing messages in error; we are working through these as an urgent priority and removing any errors from customer accounts. Customers will not be charged and do not need to worry about contacting us as we are proactively checking accounts and fixing any issues. We apologise for this issue and will automatically compensate affected customers.