TfL Contactless when you change cards

[Taunton]

Mrs T got a new debit card, it is validated when you first use it with a PIN and the accompanying letter says this immediately invalidates the old card. Touched in with old card, into London, travelled around a bit, went to bank ATM, used new card with PIN. Now then, which card to use to go home?

I said still use old card to put it all within daily cap, and conscious that TfL only process a day's transactions overnight. But then the card was invalid. Even if new card had been used, the inward journey etc would still be rejected by the bank overnight as invalid.

 

[londonbridge]

I had an instance once where I used the bus when I went shopping, and when I got home I found my new debit card had arrived in the post. Went in the TFL app and registered it to my account. Didn’t go out anymore that day. Next day I had an email from TFL saying my card had been declined when they tried to collect the fare. At this point I hadn’t actually made a transaction with the new card. The intention was to let TfL take the money on my old card before removing it from my account and starting to use the new one, but it seems the act of adding the new one to my account was enough for the bank to flag it as being used and so block the old one. I was about to go on the website and make a manual payment but I checked the app again and saw that the money had, in fact, now been debited.