Google does not allow one company to have multiple listings on one search term. Even if the company is using two different accounts, with two different website URLs, if the offer is similar, then then accounts are in violation according to the policy. Having more than one listing in the search results can be huge for a company and generate significant revenue by almost performing a roadblock (when one advertiser takes over multiple ad slots on a webpage). I reported and advertiser who was violating the rules and was told that the offerings were just “different” enough to not be a violation.