Frequently Asked Questions

  • What industries is your vending system used for?
  • Answer: Prepaid Vending (Electricity and Water) and Revenue Enhancement Solutions for Utilities.
  • How long have you been in the industry?
  • Answer: Over 20 Years with at least 200 man hours of experience. References can be provided.
  • How do we get to use your service?
  • Answer: Contact us via email on for more information. We have Business Development Managers servicing all provinces.
  • Do you do vending outside the borders of South Africa?
  • Answer: Yes we do. Contact us on for more information.
  • Do you do smart metering vending?
  • Answer: Yes we do and we also supply our own smart meters as well.
  • What other services do you render?
  • Answer:
    • Smart Metering
    • Meter Audits
    • Prepaid Meters
    • LPU Audits
    • Private Vending for Sub-Metering

STS TID Rollover

Who is affected by the STS Key Change Process?

  • All prepaid meter users, vending service providers and meter manufacturers.

What is the significance of the year 2024?

  • On the 24th November 2024 the 'old' meter keys will 'expire', and tokens will not work in the meters, so we have to start using a new meter key before that date.
  • Think of your car odometer - it rolls over to zero at some point, this is what happens to the meter key and it stops working.

How does this process affect me as a prepaid meter consumer?

  • In order to update your meter keys, you will be required to insert a special token called a Key Change Token. this is 2 X 20-digit tokens that must be inserted one after the other, just like credit tokens.
  • You need to ensure that you use up all your old, unused credit tokens before you enter the key change tokens. If you do not enter your credit tokens first, you will not be able to use them after you have entered the key change tokens.
  • Your credit on the meter will not be affected.

Will I need to have my meter changed?

  • No, you will not need to have your meter changed if it is a properly functioning prepaid meter.

What is a Key Change Token?

  • It is a set of 2 X 20-digit numbers that you will need to enter into the meter in the sequence that it is given to you.
  • Always remember to wait a few seconds before entering each set of 20-digit numbers as each meter is different and may need the pause to read the tokens correctly.
  • Once the tokens are entered into the meter you will be safe to carry on using the meter and come 2024 your meter will continue to function normally.

Why do I need a Key Change Token?

  • So that your meter is upgraded with a new encryption key to ensure that it functions correctly after November 2024.

What happens if I do not input the "key change tokens"?

  • If you have been issued the key change tokens but do not enter them any credit tokens you purchase thereafter will not work in the meter.

Who do I contact to get more information about this process?

  • Contact your local municipality for more information.

I have heard that these tokens make the meter deduct credit faster after the update?

  • This is not true at all, prepaid meters measuring rate cannot be adjusted by tokens, that can only be done at the meter manufacturers factory in a calibrated manner.

I do not know about this update and the actual necessity for it. How can I confirm this is necessary?

What happens to the credit on my meter?

  • The credit on your meter remains. It will not be affected.

Can I use my current tokens afer I put the key change tokens into the meter?

  • No, you need to use up all credit tokens before you enter the key change tokens.