Which company launched the world's first commercially successful mobile payment system in 2007 that allowed customers to pay by simply sending an SMS text message?

The retail payment landscape has transformed dramatically in the past two decades. Before digital wallets and contactless payments became mainstream, several pioneering technologies laid the groundwork for today's mobile commerce ecosystem. This trivia challenges your knowledge about a groundbreaking invention that changed how we think about payments and mobile transactions forever.

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M-Pesa by Safaricom in Kenya
Apple Pay by Apple Inc. in the United States
PayMate by PayMate India
Alipay by Alibaba Group in China