Yeah sorry to hear that you didn't get a reply.... Getting people that are no off the show would be so much harder! Jessica wasn't easy when she was on the show, or so I found and now that she is gone I think it would be near to impossible. Todd was rather good, but when he got more popular I think he may have become slower or stopped signing completely. I tried him a few times, but never got anything back.
I guess it's just the luck of the draw, and I have to agree that a lot of the younger cast aren't very good with replying, Josh, Luke Jacobz, Tessa... etc I have never seen a reply from them, maybe one or two from Tessa. Esther used to be really good with fanmail, but lately no one has had anything back from her, maybe it is just because everyone on here already has her.
I think when a cast member first starts they keep up to date with their fanmail, but once they get popular it must be harder, like Luke Mitchell I think he replied to everyone at the start but I haven't heard anyone getting anything back from him since. Rhiannon, Samara, Lisa and Charles seem to be replying, and I hope they don't stop because I sent out the them last week because I got weird successes with no signatures. On twitter both Lisa and Rhiannon told me that they keep up to date with their fanmial but the mail offices are very slow, so I'll have to wait and see!
I love collecting autographs, and although sometimes the waiting is awful it's something you have to do! It also makes it a lot more exciting when you get an autograph in the post, most of the time I find they come when you least expect it!
Lets hope everyone that sent to the Riverboys gets a response! And whoever else you wrote to! Sorry if that post was a bit long, but I'm sure a lot of you agree with most of it!
El Xo