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I'm pretty sure offline is supported, unfortunately in the UK despite this some train services have online-only chip+PIN machines in their buffet car, forcing y
by sean-duffy 10y ago
I'm pretty sure offline is supported, unfortunately in the UK despite this some train services have online-only chip+PIN machines in their buffet car, forcing you to wait until they get good signal to pay for your food!
- sveiss 10y agoTesco use offline processing in many stores. It's visible to the customer as a much faster process -- you can remove your card around a second after you enter your PIN, instead of waiting 4-5 seconds for authorization.
- gadders 10y agoI think normally cards get a limit of offline transactions before they have to do an online one. I think it's about 7 or so before an online transaction is "forced".
- tomw2005 10y agoThis seems about the correct number. It is similar to how the contactless support works. You are forced to use the traditional Chip and Pin method occasionally. It seemed to be about 5 transactions for contactless initially but I feel they have increased the limit now.