Part 10/14:
The restriction primarily affected transactions in non-major currencies, implying that the responsible acquiring banks are those handling local markets or emerging regions. Candidates include payment providers such as PPRO, DLO, Aden, and WorldPay—massive global players with deep ties to both Mastercard and PayPal.
These companies operate as regional or international acquirers, processing a substantial share of complex or high-risk transactions for platforms like PayPal and potentially for Valve. Their position in the payment ecosystem makes them prime candidates for the entity that withdrew services from Steam following the content-related conflicts.