Is it possible for a merchant to block an amount as a deposit on my card? Alina Cautis 08 March 2022 12:55 Updated Yes, that's possible, as long your account balance is sufficient. Related articles Where can I top up with cash? Why was I charged for SEPA loading? At what age can I get a VIABUY Prepaid Mastercard? Track your email requests with our new feature "My activities"! Comments 0 comments Article is closed for comments.