{comments}
After LHO opened 1♣, I balanced with a double because I was too strong for a balancing 1NT which GIB calls 11-14. After that pard correctly jumps to 2♠. After that, the continuations are all wet - 2NT is alerted as 19-21 and 3NT is 22-25. Those ranges are all wrong - 2NT should show 15-18, 3NT should show 19-21, and if you really have more than that (come on!) you can cue bid. At least GIB didn't leave me out to hang but it would be nice if its descriptions were accurate.