How long is my VIABUY Prepaid Mastercard valid? Permanently deleted user 28 May 2024 10:38 Updated The validity of the card is 5 years from the date of issue.A new VIABUY Prepaid Mastercard will be sent to you in due time before your card expires. Related articles How can I contact customer service? My card expires soon, how do I get a new one? Complaints management Why can I not log in? What's phishing and how do I protect myself against scams? Comments 0 comments Article is closed for comments.