Prepaid cards, including prepaid MasterCard, are not accepted as valid payment methods in the Microsoft Store. This is a common restriction across various platforms, as they typically require a standard credit or debit card for transactions. If you are looking to make purchases in the Microsoft Store, you will need to use a credit card or debit card that is not prepaid.
If you have further questions or need assistance, you may want to consider contacting Microsoft support for more specific guidance regarding payment options.
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