The number I have is 815-477-0007. Be warned, I haven't had to contact them in a few years. I do remember that they required an RA before you send anything in. If you send something to them without an RA they will send it right back to you, so call first.
Ive used that fill station before. Its crap. Get a booster.
Because everyone has a few grand to toss around for a booster.
That looks like the one PMI distrubutes. You should be able to contact them about it. They will have you send it in and replace the o-rings for a nominal fee. They're pretty uptight about anyone but them chaging the o-rings as it is a saftey issue.