Invoice/bill for DSO Quad?


So I’ve received my DSO Quad just in time for our departure to the other end of the planet. Looking pretty sweet so far, bummer the digital probes weren’t included yet. Also, and this is a lot more serious… the shipment was underdeclared (2x16 LCD, $5) and did not come with a bill or invoice. Now I do understand you guys wanted to do me a favor here, but it turned out to be the opposite because I ordered the device for my little business which happens to be tax-exempt anyway. For clean bookkeeping, I absolutely need proper documents. So where can I get them?