If you are using an apple device with iOS 13.3.1 your normal VPN connections from a VPN app from your VPN service cannot always be used safely as there is an unfixed bug in iOS 13.3.1 that allows normal internet connections to be made even though you are using the VPN service app.
If this happens this would expose your IP address.
This is a fault on your Apple Device and not your VPN Service.
However if you use a VPN Router to share your VPN Service then this cannot happen.
Stay safe and use a VPN Router to share your VPN service to all your devices.
Dont get tricked! Be smart and use a VPN Router.
Read more about the iOS 13.3.1 Bug in this Blog Post from Private Internet Access https://www.privateinternetaccess.com/blog/unpatched-bug-in-ios-13-3-1-and-later-stops-vpns-from-encrypting-all-connections/
Please Note If you are already using a VPN Router you need to no action as you are safe. If you are not we recommend buying this VPN Router