The page itself flags this mismatch.
The body text suggests a first check at about 30 days and a meaningful assessment at 60 to 90 days. The gap list mentions a 90 to 180 day results timeline. The refund window is 60 days from purchase.
Decide in advance what you will judge at day 30 and day 55. If you need longer to decide, accept that a refund may no longer be available. Keep a log so the decision is evidence-based, not a hunch.