Resolved -
This incident has been resolved.
Aug 21, 16:20 BST
Monitoring -
We believe the issue of an unusually high number of SMS messages ending up in a failure state is isolated impacting a small number of services whom we have contacted; we are monitoring.
Aug 21, 10:15 BST
Investigating -
An unusually high number of SMS messages are ending up in a failure state. We are working with our providers to understand the root cause of the problem.
This may impact successful delivery of SMS notifications to a users handset.
Aug 21, 07:08 BST