The Red Pilgrim
I attempted to use a Mastercard Gift-card to purchase Riot points today and it claims the card number isn't valid -- but the support site for MC says the card is fine.
It says the card is usable for online purchases, but it's not taking.
Does LOL just not accept this form of payment?
Make sure you are using the card number with no spaces or dashes, the number should be formatted as such:
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