When the flashy futuristic Mondo card meets with the past
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In Germany many taxi drivers are still using paper vouchers when you want to pay by card
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They take your card and make a carbon copy of your card numbers, you sign the paper and then they send it to their bank. They are supposed to call the bank before they accept the transaction to request an authorisation but in 99% of the cases, they don’t. ] (http://www.theukcardsassociation.org.uk/wm_dynamic/pagecontent/maunual_imprinter.jpg)
The question is, how do you handle those type of transactions, especially when there are no funds on the card. Would the card still be charged at some point, or would the taxi driver end up being not paid as he decided to live in the past?