At least warn me before???? I depend on VPNs for work.
Do I have to find out that you have a 1000 MB daily limit on free accounts due to a suspension?? Put a little bar that measures the limit or warn me or something.
"Dear vpn user,
we had to block your account 'email@example.com' temporarily because of over-usage of your free account. Our accounts are free until a certain daily limit, then your account will be blocked until next day. This way we plan to give fair free service for all our clients."
I will 5-star once you inform your users about the limit in the 'About' section and on the interface.