@NigelPa_2212053 I'm not being funny here, but there was no text in your post and so nobody would have known that.
There have been a considerable number of posts about exactly that issue recently. A quick search will bring up any number and it is linked to security. Companies that hold your personal data (e.g. name, email, payment history, call/text/data history etc), are required to comply with GDPR and many of them are reinforcing their apps and websites with two factor verification and not allowing you to stay signed in if there is no detected activity. Santander, as an example, will log you out after a couple of minutes with no activity.
