International users prefer familiar payment methods—like mobile wallets in Africa, Alipay in China, or UPI in India. Limiting payments to credit cards or PayPal alienates large customer segments. MVNOs must integrate local payment systems to maximize adoption. Flexible gateways that handle taxes, refunds, and real-time settlements are essential. Payments are not just transactions—they’re part of user experience. Ignoring local preferences risks losing entire markets despite strong service offerings.