My guess is, your service provider only allows website hosting and blocks Get and Post requests
From the t&c
We do not allow any kind applications to be hosted here.
Applications such as, proxy scripts, shell scripts, online gaming scripts, file/image sharing scripts, chat scripts, paid-to-surf, auto-surf, buxto, torrent scripts cannot be hosted here. Account will be suspended and you may get a chance to reactivate it. If violation will occur again, account will be closed/ terminated.