Hi Figi.
I'm in the UK and had to really fight 5o get VSL#3 on script. I contacted Crohn's & Colitis UK who advised me to get my specialist nurse to write to my gp practice. They gave me links to specific articles for her to quote.
Then....hey presto, I got a repeat script. Having said that, as I understand it, due to some legal wrangle, it is now called VIVOMIXX in the UK but my script altered to this without me doing anything.
I'm not claiming benefits so I pay for my scripts with a prepay certificate. Good luck.