well, given that your still using a MAC from globe, which is registered on them as an ALIVE account, it is highly possible that it's the MAC thats causing it.
it may be capped with fair usage policy.
or
there is an issue with your area. If this is the case, all you can do is wait.
or wait for...
fair usage policy po ata yan sir
ganyan din status ko, I think they have re-activated the fair usage policy Data Download Limit
25gb per month for 1mbps
30gb per month for 2mbps
35gb per month for 3 mbps
I used to download almost over 90gb per month without any incident,
then it happened...