There is patient assistance, but it's not though VSL. It's through NORD.
/www.rarediseases.org/There is a lot of paperwork you have to fill out, but I don't pay squat for VSL. They will send as much as your doc prescribes, so if the doc prescribes 4 sachets a day, that's what they send. My wife just emails our contact when I'm running low and a few days later a new supply comes in. Pretty crazy. I'm not kidding about
the paperwork though, it's quite a bit. Good luck.