I was trying to think of a cost effective way of allowing a user to replace their card if lost. My first idea was to partner with a large chain and have self service card makers available - however I think it would be to costly to deploy.
I then thought or two ideas, I don’t know how Mondo currently sends out replacement cards but I assume Royal Mail 1st class which will probably take a day or two to arrive depending on when it was requested. I know company’s such as eBuyer and Asos offer very late delivery cut off times, I know with Asos I can order something at 11:30PM and have it arrive the next day, maybe offer an option for a premium next day delivery service, obviously as long as it’s not a silly price, but if I was going away on holiday or needed my card for an important purchase, I would prob ally be willing to pay £5 for the convenience of being able to report a lost or stolen card at 11PM and have a new one delivered the next day.
My 2nd idea was a virtual card, so once you report through the app that the card has been lost or stolen, you will instantly be issued a new card and I would be able to view all the details needed to make an online purchase and add the card to Apple Pay so I could at least make some transactions while I wait for the physical card to be made and sent to me via snail mail. This could also apply for new users so they can literally start using their new account immediately after registering. You could also apply this same logic to a PIN number if the user has forgot the pin - obviously after some sort of authentication such as Touch ID and other security authentication.