Let 'em have it! (Score 1)

Give them a week to resolve it. If they still won't, find yourself a non porno-hosting ISP and you won't have to worry about it. Above all, let them know what they did by not telling you about the ban was wrong and unfair to you and that if they don't resolve it, they'll lose more customers. pair.com is always cheap, fast, and open. If they don't keep their users happy, someone else will. The Internet is a big place, after all.