He said he tells the troops to use only pre-paid cards, or to have an operator cut in after a set number of minutes.
In those cities riders pass their pre-paid cards across an electronic reader on the turnstile before proceeding through.
It also plans to reintroduce pre-paid smart cards along selected routes.
The smartest thing you can do for online shopping is get a pre-paid or a card with a 500-1000 cap.
In 2012 the brand was re-launched again as a very price competitive and simplistic pre-paid card.
Within four months of launching, 100,000 pre-paid cards registered on mobile phones were sold.
Depending on the version, users can pay by a monthly subscription or buy pre-paid cards.
You can buy the pre-paid cards at many retailers or buy them online digitally.
However, he has a warning about using pre-paid cards when checking in to a hotel or hiring a car.
InternetCash.com was a company that generated pre-paid cards, either in physical or electronic form, to distribute cash.