My IP is banned, I can access through VPNs though
No, your router is caching the old DNS entry. Reboot your modem/router/PC and you won't need a VPN. If you know wtf you're doing, you can try just flushing the DNS cache.
None of that is working for me. I'm borrowing someone else's IP address to get on at work. I'll try my IP again next Monday. I have heard that the anti-DDOS system can block IPs for 24 hours. Perhaps this is the case for mine.