Hi @MrYellow,
The warranty is not international, but specific to the market the device is meant for. This is because local consumer laws, warranty terms, service routines, frequencies, device hard- and software and customizations may vary among others. You can read more about the warranty terms here:
http://support.sonymobile.com/global-en/xperial/
Regarding a solution or plan, I advice you to contact your Local support, since this is a global user based forum and therefore I can't assist you further.
