Upon activation of the sim, you need to perform BTS (Basic Troble Shooting) to refresh the services that you have in your account then after that, you can now enjoy your new sim.
Thank you. Hope this will help you.
Actually no need to do anything once the account is active, all you have to do is check the APN settings on your device.
For postpaid the APN should be internet.globe.com.ph once you corrected the APN you can already turn on your mobile data and surf away.