Many service stations (e.g., Engen , Shell , Caltex , Total ) offer 24/7 electricity token sales.
If "provide paper" refers to academic research or technical documentation regarding electricity markets, these papers explore how and where electricity is traded:
Local convenience stores equipped with PayPoint or Payzone terminals can process top-ups using a smart card or meter number. 2. Academic & Economic Papers
Major retailers often sell electricity vouchers at checkout counters. Examples include Pick n Pay , Checkers , Shoprite , and Spar .
Most major banks allow you to buy electricity directly through their mobile apps or at ATMs. Some, like Capitec Bank , offer specialized "electro-vouchers" that can be redeemed via phone.