The Save the Pub Group has reported a "positive" meeting with the Office of Fair Trading (OFT) to discuss the beer tie.
Group chair Lib Dem Greg Mulholland and fellow member David Drew of Labour met the OFT to discuss its re-opening of the Campaign for Real Ale's (CAMRA) super-complaint.
Outspoken pubco critic Mulholland said the original OFT report had been "flawed" because it was "not actually based on a proper assessment of the pub sector".
He said: "So I am pleased that they are looking at this issue again but the Save the Pub Group have made clear that this time they must properly look buy the sector and the way the tied system as operated by some companies is bad for consumers with inflated beer prices and pub closures."
Drew added: "This meeting also offered us the opportunity to raise some of our concerns regarding the current state of the industry.
"I hope that the OFT will take on board the things that were said in the meeting and we will see a much more balanced verdict given soon."
Meanwhile, Mulholland has welcomed the support of a local Leeds business in his boycott of Carlsberg lager, following the decision to close the Tetley brewery.
KeyringKings.co.uk has launched a new bottle opener keyring, which has the words "Boycott Carlsberg" on it.