Unfortunately, I am not aware of any cloud service provider that offers free 10TB or more storage specifically to users with .edu.ph email addresses similar to Telebox. However, there are several cloud storage providers that offer free plans with varying amounts of storage that may be suitable for educational purposes. Some popular ones include Google Drive, Dropbox, Microsoft OneDrive, and Box.
Google Drive offers 15GB of free storage, Dropbox offers 2GB with the potential to earn more through referrals, Microsoft OneDrive offers 5GB, and Box offers 10GB. While these options may not provide 10TB of free storage, they can still be useful for storing and sharing educational resources.
It's also worth noting that some educational institutions may have partnerships with specific cloud storage providers that offer additional storage or discounts to students and faculty. I recommend checking with your school's IT department or website to see if there are any recommended cloud storage options for students with .edu.ph email addresses.