Many are asking if it is advisable to convert from a credit meter (post paid scenario) to pre-paid and what the financial impact and burden would be for either case. This is unfortunately not as simple as simply doing the math but the math is a good place to start regardless. I will be using the published rates of the City of Johannesburg as an example scenario and whilst the rates are different for different cities around South Africa and the world the principles remain the same.

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