During exchanges on future Commons business on 30 June 2011, Tory MP Andrew Griffiths said he mistakenly submitted two invoices with the same supplier name, date, reference and amount, which were both processed by Ipsa.

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Thirdly, they complain that the beneficiaries of the scheme are to be picked by reference to official poverty data, out-of-date and unreliable (the 150 districts, for example, are not necessarily the poorest).

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And despite the occasional slip of a date reference from various executives, an official ship date still hasn't been set.

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