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Maestro is still listed as Switch in Magento - it hasn’t yet been updated to reflect the change (you can probably do it manually). The saved CC method also doesn’t offer the options of start date & issue number, which is a large omission for anyone using this method with these cards.
If you want to process these cards with the saved cc method then you’ll need to find someone to expand the options for the payment method, otherwise you’ll need to use a live method which automatically processes the card