A quick visit over to Activision’s support site and a click on the link for ‘Click here for technical help with Guitar Hero and other Red Octane products‘ andyou are into a process for identifing issues with their products. What strikes me as weird, and haphazard is the fact that if a product is not working, they do not mandate that a serial number is given and nor do they request that the offending item is within warranty or even returned to them. 

God forbid anyone that was dishonest enough to request a replacement for a product (guitar, drum kit or microphone) that was not actually broken; or even existed to be sent to them within a few days! Surely no-one would do that would they?