For the record, you've essentially demonstrated why the rule exists.
If everyone did this sort of post when they or their mates got banned, it'd be a lot of worthless spam on the forums that doesn't really achieve anything ;)
Some 3G / 4G ip addresses have been banned by us or are potentially on a list that our firewall filters out. Disconnect and reconnect your mobile data and with any luck you'll get assigned a different IP (maybe) and this will be fine. There is not a lot we can do on our end.
This previously was because there was a soft cap of how often you could upvote posts by a certain person. There was also an issue with whether or not you had already liked it was displayed correct. This should no longer the case with newest reputation system. Post again if this recurs.
Given that you haven't been here for a long time and got banned for using an exploit 2 months after being unbanned, and then proceeded to immediately name other communities on this appeal in spite of the forum rules infer about advertising, I think it might be a good idea for you to try a new...