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The ASA received two complaints about which formed part of promotional activity for Snickers owner Mars this week.

A spokesperson for the advertising watchdog confirmed the campaign by Abbott Mead Vickers BBDO is being investigated against two possible breaches of the Advertising Code: whether it should have been stated in the ‘teaser’ tweets that they were marketing communications; and whether the hashtag "#spon" in the final ‘reveal’ tweet made it clear enough that that tweet was a marketing communication.

Can’t wait 2 get home from training and finish that cardigan

— Rio Ferdinand (@rioferdy5)

You’re not you when you’re hungry @#hungry#spon

Both complaints were said to have come from members of the public

Last weekend, Price tweeted from her @MissKatiePrice account, which has around 1.5 million followers, about the Eurozone debt problems and China's GDP rating, before revealing that she hadn't been herself because she was too hungry.

She tweeted: "Great news about China's latest GDP figures!!", "Chinese leaders now likely to loosen monetary policy to stimulate growth. Yay!!", "OMG!! Eurozone debt problems can only be properly solved by true fiscal union!!! #comonguys", and "Large scale quantitative easing in 2012 could distort liquidity of govt. bond market. #justsayin".

Large scale quantitative easing in 2012 could distort liquidity of govt. bond market.

— Katie Price/Jordan (@MissKatiePrice)

Price then tweeted the Snickers strapline, "You're not you when you're hungry @snickersUK #hungry #spon" and a picture of her holding a Snickers bar.

You’re not you when you’re hungry @

— Katie Price/Jordan (@MissKatiePrice)

Boxer Amir Khan (@AmirKingKhan), cricketer Sir Ian Botham (@BeefyBotham) and singer Cher Lloyd (@CherlyLloyd) have also been involved in the campaign.

The ASA expects to reach a decision within "a few weeks".

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