Burger King gives away 'thousands' of free Whopper meals - but chain only realised after 'grass' reported app error

Summary
Overjoyed customers found they could add any number of extra burgers to the two for £12 Whopper meal, at no extra cost.
Description from Daily Mail.
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Burger King gives away 'thousands' of free Whopper meals - but chain only realised after 'grass' reported app error
Overjoyed customers found they could add any number of extra burgers to the two for £12 Whopper meal, at no extra cost.

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