If the IP address displayed when you are connected to the VPN is different from the IP address shown when you are not connected to the VPN, then the VPN is working properly on your phone. Alternatively, you can also try accessing a website or service blocked in your region while connected to the VPN. If you are able to access the website or service while connected to the VPN, it is likely that the VPN is working correctly. It's important to note that VPNs may not always work as expected, and there are many factors that can affect their performance. If you are having trouble with your VPN, you may want to try troubleshooting the issue or contacting the VPN provider for assistance.