At the moment, there is no official language coverage when you call in Splunk Support.
In other words, we do not offer, today the ability to route your call to Engineers speaking other languages than English.
That said, we have on board, Engineers who speak other languages than English. We currently have in the team the ability to converse with you in Japanese, Chinese, French, Spanish and Italian. The way to talk to them is when you are calling us, to see whether somebody with additional language knowledge would be available. We will try to accomodate, if possible, but it is not something we are offering at the moment.
We are currently looking into it and evaluating such options for the end of the 2011.