Originally Posted by
rcspeirs
For UK citizens, using a contactless bank card is even better than Oyster. No need to obtain a separate Oyster card yet same prices as Oyster for PAYG usage. If a weekly travelcard would be cheaper – the system will “cap” the charges to the equivalent of a weekly travelcard. However, overseas bank cards are not guaranteed to work (some do – some don’t) and you may be hit with foreign currency transaction fees by your bank.
.
To clarify TFL will only apply the weekly cap on a Monday to Sunday basis unlike a travel card which can start on any day of the week.