I doubt, operating on one-offs, that they can meet the level of demand they are getting for compassionate use. Just my impression from that exchange. It likely costs a lot more than what they are charging to scale up to the level they are now for one-off production runs when they are not scaled, funded and ready yet to do commercial, daily production.
I'm sure it is frustrating. But Cancer is not a rare disease. Just the posts alone of supporters of the company on Twitter daily are likely causing all kinds of inquiries they can't meet. They need to get to market, but they also need to meet the requirements to get approved and to get paid ultimately, and survive competition, which will likely be along in a few years and well funded once they succeed.
Lots of tough decisions.