You need to learn to be literate. :3
Be patient a non Literate RP will come sooner or later. :D
I cannot tell that, but you need to be patient, if you can't find non Literate RP's then look for a Semi Literate RP, so you don't have to be a genius at spelling.
If they are rude to you, harassing you, take a screenshot and report it to an admin or moderator, if they say you cannot join due to literacy, I cannot see how that is harassing, keep looking, I might make one tomorrow even!