This rather less-than-helpful posting:
sums up the situation rather well:
- there are no pinout diagrams
- the 12-pin plug is not sold any more
- the cable itself is so rare that even in the Used market it is not findable.
and that posting was in 2007, 9 years ago. The situation is like that still.
I don't think that cable, or even the plugs at the end, will be ultimately findable on the Used market. But you can post on sites like that one... or post something additional, e.g. asking them to please state what co. made the plugs, as mentioned in the second posting.
And you can post Wanted ads on craigslist.com, and also search the Free or the For Sale sections of your region's craigslist.com, looking for anything related to the G22000 or G-22000, about every week or half-week. If you got lucky, someone might throw out the plug or cable for free, but I personally doubt that this approach will yield anything in less than a year's effort (a search every half week or 3 days or so.)
As for monthly service or subscription plans - as a JustAnswer.com Expert, I have to refer your concern to Customer Support.
For all issues of billing, payment, subscription terms and status, etc., I must refer you to Customer Support at JustAnswer.com, which may be contacted through:
They will no doubt address your concern, if you contact them, with reasonable promptness.