Can I change the PIN code of my card? Amanda Oliver 25 January 2022 08:46 Updated Unfortunately, it is not possible to change the PIN on your VIABUY card. If you've forgotten your PIN, you can request a reminder by following these instructions. Related articles I cannot log in on the new app Does the VIABUY Prepaid Mastercard card have a 4-digit or 6-digit PIN? The new VIABUY iOS app is here (only for Apple users) Comments 0 comments Article is closed for comments.