daisylyntrocio if you have an existing log-in on My Account (Web Portal), there is an option to reconnect your account located at the side.
In addition, you can use the GServices App (available on both Google Play and App Store) to have it reconnected.
You can also call 211 or (02) 730-1000 (using a Globe Mobile Phone or Globe Landline) to have your line reconnected using the automated system. Just follow the Interactive Voice Response System, and you should be able to have your account reactivated.
Account re-connection usually takes up to 2 hours (may vary).