I have done it in all my lines.
It is possible if the documents submitted are easily verifiable and validated and the CSR attending to your needs would have the authority to do so.
You can have it in less than an hour in my experience.
Oh... you have to do it in a Globe business center and NOT online.
The most hassle free postpaid application is by getting a line only plan. Just present a valid government issued id and a 1 month advance montjly service.
You can terminate the said line anytime if youre not satisfied with globe services.