Does anybody know if the "Calls to mobiles in 10 countries & landlines in 30 countries" option is available only to the $149 share everything plan?

I see there is an international chat pack but it only covers 20 countries (and excludes the country I'm interested in - South Africa).

Im pretty sure there used to be a chat pack that did include all 30 countries but didnt require the most expensive share everything plan.

Thanks