I also need to get my head around the way how they increase cost by amount and time of the month which I don't think is ethical or justified.
There is no time element and I don't understand how people are still not getting it.. it's simple:
Tariffs are based on usage within a month.. there are typically three blocks of usage, escalating tariffs as usage increase:
Tariff 1 for example would be 0 - 350kwh at 1rand per unit..
It does not matter whether you buy on the 1st or the 31st of the month, if you do not buy more than 350kwh worth of units, you remain on tariff 1 for the month..
If you buy 350kwh on the 1st and come the 20th you need to buy more, you will then be pushed to tariff 2 and pay more per unit..
Edit:
I don't know why city officials need to perform the upgrade, as meter upgrades in cape town was simply additional tokens you received when buying electricity, that you punched in like normal and upgrade done.. no security risk..
Unfortunately, we did still have criminals taking advantage and my mother was victim to this..