Help! I got banned

Edit Post

I am not able to access this forum from my laptop on any wifi . I think my MAC address is banned. But I don't know why. I only viewed this forum as guest in the last few days. This is my first post. Please lift the ban I need help from this forum.

This is the message I get
" Sorry guest you are banned from using this forum
User GirlOnline Banned for attacking the forum for no valid reasons. Do not use the forum if you don't trust the forum for any reasons.
The ban is set to expire on January 4"

Edit Post

Well I am staying in a hotel and wifi is shared. So I guess it's possible some person got banned from this very wifi.
But strange thing is trying to access this forum from any device using that bad wifi is getting the device banned. I have my laptop and phone banned. Now I am posting this with 3rd device with mobile data. Btw location is hyderabad India.