Source:
BBC NewsThe Office of Fair Trading (OFT) has launched an investigation into Groupon after the firm broke UK advertising regulations 48 times in 11 months.
Groupon, which offers daily deals on products from cupcakes to car hire, has been referred to the OFT by the Advertising Standards Authority (ASA).
However, the OFT says it has been investigating Groupon in secret since July.
The investigation became public after the ASA voiced its concerns.
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http://www.bbc.co.uk/news/business-16000648