Internet service provider (ISP) O2 has continued it Niggles and Narks campaigns in the national press, as the firm attempts to encourage consumers to switch from its rivals.
In the latest Metro ad, O2 urges broadband users to "clobber the crafty-cost nark", in what appears to be a not-so-subtle dig at hidden ISP usage charges.
O2 urges customers to help keep their broadband and home phone costs low by playing its online Great Niggle Nobble game, which sees virtual characters scour the UK looking for web service flaws.
"Help us nobble broadband niggles on Facebook or on your iPhone and you could win some amazing prizes," the ISP said.
Players who finish with the top ten scores every day the O2 game runs win £250 vouchers for use at Amazon.co.uk.
When the competition concludes on July 16th, the overall top ten players will be entered into a prize draw to win a two-week VIP safari trip to South Africa.