Originally Posted by
MSPeconomist
This will be an inconvenient nuisance for overnight transit passengers who might not have an Oyster card, etc. (and who might not want to convert some money into British pounds).
For those with contactless credit cards, you can just use that card. From the
TFL site:
If your bank card shows the contactless payment symbol, you can use it to pay as you go straight away. You'll pay an adult rate fare.