How long is my VIABUY Prepaid Mastercard valid? Aline C. 24 September 2020 07:19 Updated The new cards (since 2019) are valid for 5 years from the date of issuance (before 3 years). A new card will be sent to you in time before your VIABUY Prepaid Mastercard expires, as long as you have balance. Please do not forget to have your current address in our system. Related articles What is the difference between the gold and the black card? How can I change my address? My card expires soon, how do I get a new one? VIABUY partner cards no longer available How do I make a bank transfer to my card?