O2 CLASSIC sim cards, NEW/SEALED, LAST FEW REMAINING, PAY AS YOU GO, DON'T MISS!

O2's Classic sim tariff is no longer available from O2 but we still have a few remaining - but. This is the last tariff available on which your remaining credit does not expire until you've used it. O2 require a minimum £10 top up in any 6 month period, but ALL unused credit remains on the sim and does not expire.

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