Soweto residents owe Eskom R3.6bn in unpaid power bills they don't ever intend to pay, compared to R2.6bn owed by the rest of the country.
The ruling Botswana Democratic Party secured 33 of 57 seats in Parliament, giving Khama another five-year term as president.
South Africa's unemployment rate rose in the third quarter, with more than one in four out of work.
Reserve Bank Governor Gill Marcus has warned that South Africa's economic outlook is deteriorating rapidly, with strikes likely to lead to job losses.
SA's current account recorded its largest deficit in nearly four years in the second quarter of 2012 as exports fell due to subdued external demand.
First National Bank says it is aiming to appoint a new sharia board for its Islamic finance division by the end of 2012.
Finance Minister Pravin Gordhan says SA's growth this year is likely to miss forecasts while the central bank warns about the economy's vulnerability.
SA may issue five new bonds this week, helping to plug a 10-year benchmark gap and extend the government yield curve by a further seven years.
Headline inflation slowed in March to within target range for the first time in four months, suggesting inflation may undercut the forecasts.
The rand fell more than 1,7% to a three-week low against the dollar on Wednesday as Europe's debt problems kept investors wary of risk.