Online agent Russell Quirk submitted a complaint to the Competition and Markets Authority about Agents’ Mutual well over a year ago.

Quirk says he is certain it led to yesterday’s warning letter from the CMA.

In Quirk’s complaint, which EYE has seen and which was made before OnTheMarket launched, he made two allegations.

First, he said that online estate agents would be excluded from it. He alleged that this was unlawful and anti-competitive.

He also alleged a cartel, specifically saying that the ten directors of Agents’ Mutual “are acting as a cartel”.

He said: “Their published ethos is they insist that their customers ‘de-list’ with one of their two larges competitor portal websites. This is anti-competitive and affords the house selling public less representation by those member agents

“Moreover, in collaborating as the senior members of various UK estate agencies in applying the above two policies, they are acting in a restrictive manner in order to manipulate and limit competition in their own favour.”

Yesterday’s open letter from the CMA does not address Quirk’s specific complaints. It does not call into question OTM itself, nor its directors, and is silent on OTM’s ban on online agents. Instead, it addresses the behaviour of agents themselves and whether they have colluded.

Quirk’s complaint was not acknowledged for some months and only then after he chased up. In a letter, also seen by EYE, the CMA did acknowledge in January 2015 that Quirk had made contact with it in October 2014. Its letter explained that the CMA does not respond in detail to individual complaints, but goes on to say: “However, we have noted your complaint and brought it to the attention of our pipeline/intelligence teams.”

Quirk, CEO of eMoov, said yesterday: “Their policy is not to respond to the complaint as such. They simply investigate or not. In my case they did.”

Yesterday, Quirk put up a blog online saying that OTM boss Ian Springett must step down as CEO, and that the NAEA come off the Agents’ Mutual board.

He described OTM as being a “monumental failure”.