At times, may run out of money but there are at times also rare cases that 1 doesn’t have airtime. Vodafone recently fitted over 1000 black cabs with chargers to help the passengers at the back only. Not only they made this possible, part of the agreement mentioned that Londoners can text using Vodafone and the fare will be deducted from the airtime.
This is much better for the Londoners, it is more convenient to have deducted airtime rather then waste time in a cab to the ATM and then pay, the unnecessary trip. When Bedford Center in Johannesburg was upgraded, Eastgate also provided at a cost of R5 (ZAR) to fully charge any device.