What about RAIPlay ?

I just installed the addon, seems to work as expected (changing of servers and IPs okay) but I cannot get things from RAI though (one has to register on their website with a mail address for example, I did this of course and I cleared browser cache and cookies before trying, too)

When trying to play or get a video on RAI I still get "Content available in Italy only" although I have an Italian IP by Hoxx, I tried in Firefox and Chrome but without success so far. So did anyone manage to get things from RAI or should it work in general ? Maybe not many servers or Hoxx IPs in Italy and known to RAI already (and prevented to get things with those IPs) ?