Based on my most recent experience with a newly activated postpaid account,
1.) the data allowance will be reset immediately on the first day of your billing cycle.
2.) the first bill should be prorated. It will be calculated from the activation date to cut off date.
This is how my GoSurf was calculated for my first bill:
GoSURF Plan 499 (3GB/30 DAYS) 05/30/17-05/31/17 - 28.74
GoSURF Plan 499 (3GB/30 DAYS) 06/01/17-06/30/17 - 445.54
Regarding not being able to check your data usage, try dialing *143# and see if you can check your usage from there. Also, Globe is usually lenient when it comes to data over usage for the first bill. They usually proactively waive any charges for data over usage, at least based on experience.
hey thanks so much for the reply. At least I know what to expect. But do you know how many days from the cutoff i should receive my bill for paperless billng?
The electronic bill should be sent to your e-mail address within seven business days after cutoff date provided they have your correct e-mail address.