Part 5/14:
This communication triggers a process where the acquiring bank investigates the complaint. If the bank finds merit, it may issue a warning for the merchant to rectify the issue. Failing compliance, or if the bank deems the risk too high, the bank can terminate its relationship with the merchant. Once terminated, the merchant is placed on the Match List—a confidential database maintained by Mastercard that flags high-risk or non-compliant merchants.