Internet service provider Vodafone has been told by the Advertising Standards Authority (ASA) to no longer publish an advert about one of its mobile broadband platforms.
Seven complaints were made by rival providers T-Mobile and O2 in relation to a promotion for the company's Sure Signal device, which is designed to boost mobile phone and broadband reception.
Four of the issues raised were upheld by the ASA, including a claim the advert did not make it clear that broadband and a 3G handset were required to use the service.
Another contentious topic was the suggestion that the promotion implied Vodafone's network was superior to rivals, as the company could guarantee coverage to all consumers.
Details of the advertising complaints have come after Vodafone revealed its microSIM deals for use with the iPad are now on sale in its stores.
Three packages are available, including one which offers a 1GB monthly data allowance for £10.