Is it possible for a merchant to block an amount as deposit on my card? Aline C. 06 January 2021 11:23 Updated Yes, that's possible- as long your card balance is sufficient. Related articles Why was I charged for SEPA loading? Track your email requests with our new feature "My activities"! New SEPA loading fee from the 14th of December 2020 At what age can I get a VIABUY Prepaid Mastercard?