"Mastercard is pressing some of Brazil’s largest payment processors to absorb part of nearly 5 billion Brazilian reais (about $997 million) in card payments linked to Will Financeira after the fintech collapsed. Bloomberg, via MT Newswires, reports that Mastercard – the card network behind Will Financeira’s cards – became responsible for reimbursing merchant acquirers (the firms that process card payments for stores) for those transactions. It has already repaid roughly half, but it’s proposing a recovery “waterfall” to limit what’s left."