24-10-2008, 10:11
My brother topped up his Tuyo card with his UK issued American Express. That was about 2 years ago. He called their customer service (free from the phone) to do it. I also believe you can register online. Call and sms detail is also online.
Phones: Xiaomi Mi Mix 2, Samsung Galaxy A50, ASUS zenfone 3,
Sim cards: AT&T (Contract), 3 UK, Piranha Mobile
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