Hi LvH 👋
@Nour is referencing to the backup account feature. In the opening post he already states that the secondary pin would not work with Apple Pay, because of obvious reasons.
But at the same time as they implemented the secondary pin feature, bunq also implemented a feature to use the secondary account as some kind of back up. So when you try to pay from account X, but the balance isn’t sufficient it will be deducted from account Y (the secondary account)
What @Nour is suggesting, is to make the backup part of the secondary account feature compatible with Apple Pay. So that you can set an backup account for your Apple Pay card for the times that the balance is insufficient when you try to make an transaction.