21 days later I remember it and I know what it means.
Hello.
When you setup IP-whitelist, you may notice the next warning:
Attention!
You will be able to login to your account ONLY from specified IP-addresses. It is strictly prohibited to use this option if your IP is dynamic. You can use this option with dynamic IP-address only in case of usage VPN or static proxy.
So, you were warned beforehand that your IP-address must be static for correct usage of this protection. All requests to disable this protection are processed manually on a first in first out basis. Please be patient.