Is it possible to get insurance for a 2-month STV visa extension instead of the standard 3 months?

The user inquired about obtaining insurance specifically for a 2-month extension of their STV visa, rather than the standard 3-month period. Responses varied: one suggested that while theoretically possible, it could depend on the immigration office's policies. Another commenter clarified that typically, a 90-day extension is mandatory, and insurance must cover the full 90 days; without it, the extension may not be granted.