I checked Globe One app and there is GoUNLI50 which will allow your to have unli allnet calls and unli allnet text with 500MB data for 3 days for Php50.
If you combine this with Data offer of Go50 or the Xclusive Go50 in GlobeOne App + GOCOMBOAGBF139, it might give you the 30 day duration. I will try this once mag expire next week yung current combo ko.