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Transport for London on Twitter: "@afcperthcelyn Hi, your Oyster card has to be registered before we can to arrange a full refund of the prepay credit. Can you advise if your card
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London Underground: Londoners have £550m in unspent money on Oyster cards and this is how to get it back - MyLondon
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Does anyone know what this means? 'Your Oyster card has been stopped and can no longer be used' : r/london
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Transport for London delays Oyster card top up machine installation in Brent Cross shopping centre for second time | Times Series
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London Underground: TfL lowers minimum Oyster card automatic top up to tackle cost of living crisis - MyLondon
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