Personally I think Mirage are ace for service. I had a Nosram Matrix Evo go on me a few months ago. I contacted them, telling them I had no receipt but only the warranty card. They asked if the barcode was intact on the ESC case (which it was) and everything was sorted. I didn't need a receipt at all. I sent my broken ESC off with the reference number on the Monday and on the Wednesday morning a brand new speedo was on my doorstep. It is for this reason I sold my LRP speedo and only run Nosram stuff now.
I think the receipt thing is because the warranty is non-transferrable. The lifetime or 25yr warranty is only valid for the original purchaser, which is partuicularly annoying if you are the original purchaser and lose your receipt.
