faq/FAQ.md

@@ -9,12 +9,12 @@
     - First use [the University **VPN**](https://my.segi.uliege.be/cms/c_11650735/en/mysegi-vpn-f5-big-ip) so that your computer is recognised as part of the university network
     - Then use the same [procedure](mass-storage/mass-storage-connection) as if you were on the University network
 
-## Data storage
+## Mass storage
 
-### Disk usage management (quota, compression tools, billing system, archiving system)
+### Disk usage management (quota, compression tools, archiving system)
 - [What **are quotas**?](faq/mass-storage-quota)
 - [How much **space** do I have **left**?](mass-storage/mass-storage-quota#practical-considerations)
-- [Do I need to pay for the space I use on the mass storage and **how is the price calculated**?](mass-storage/mass-storage-billing)
+- [Do I need to pay for the space I use on the mass storage?](mass-storage/mass-storage-costs)
 - [How can I **compress** my data and/or **group numerous** files **into one archive** file?](mass-storage/mass-storage-compression)
 - [How can I **send data for archiving**?](mass-storage/mass-storage-backup-archive#offline-data-archiving)