addresses

For letters (about 95 cents)
Elder Andrew Mendenhall
South Africa Durban Mission
P.O. Box 1741
Wandsbeck
3631
South Africa

For packages (I used a US Postal Service flat rate box $38.95)
Elder Andrew Mendenhall
South Africa Durban Mission
8 Windsor Avenue
Westville
3630
South Africa

and here's his email again (free)
andrew.e.mendenhall.DSAM@myldsmail.net