Storage Space

• Why is the storage capacity in PikPak still occupied after deleting files?
• Why do I see a decrease of my used storage space every day?
• What if I run out of storage quota?
• What happens if my storage usage exceeds the quota?
• What happens to my files when the additional storage quota I purchased expires?
• Why hasn't my storage increased after purchasing additional storage quota when premium expired?
• Why is my purchased additional storage quota frozen?