Hi @alisonclark1965
The Vodafone Repair centre would so the bug report sent off with the phone could help them.
Before you do that my suggestion is to ensure your apps are up to date along with your firmware and if it is then back up and factory reset.
If the issue continues then a Vodafone High street Store can send it off under the 2 year manufacturing warranty.
Be sure to take time and date stamped pictures of the phone with one of it turned On to prove it aesthetic and working condition.
Current Phone >
Samsung Galaxy s²³ Ultra 512gb Phantom Black.
