I can't believe Bitstamp - as a UK-registered company - didn't respond to the call for information.
One of crypto's greatest merits is it's propensity to make middlemen (whose sole purpose is to take a cut while providing no tangible productivity) pointless and unnecessary. There doesn't seem much point in explaining it to politicians, who are the epitome of pointless and unnecessary middlemen. Once we've finished decentralising money and making banks obsolete, elected representatives are next for the scrapheap.