This was discussed in September/October last year.
http://www.jehovahs-witness.net/jw/friends/165994/1/Zimbabwe-Branch-Is-Cutting-Back
http://www.jehovahs-witness.net/jw/friends/166406/1/Encouraging-News-From-the-Zimbabwe-Bethel
It is easy enough to say just pour money into the country but the various aid agencies are finding that's easier said than done. Of greater value than (devalued) money are truckloads of food and material regularly brought by the South African branch.