Cargo Hold opened on Church Street in Sheffield city centre last year to a wave of excitement.
The Mediterranean-themed bar and restaurant was set up in Cairns Chamber, a Grade II-listed building built between 1894 and 1896, which had stood empty for 15 years.
As well as seafood, Cargo Hold served ‘dramatic cocktails’, fine roasted coffee and a full lunch menu.
However, after just seven months, the restaurant now shows few signs of business with customers questioning if the site has closed down.
Cargo Hold still offers a Groupon deal for a 6oz rump steak meal and a bottle of wine, but one customer said they turned up with the deal to find the restaurant closed.
Posting on Trip Advisor, they wrote: “I was taking my wife for a steak meal that was pre-booked using the restaurant’s system.
"But, shock horror, it was closed. The large door was padlocked and there was no sign of life and no notice on the door.
“Has it closed down? I’m now in a battle to get my cash back.”
Other customers have taken to the restaurant’s Facebook page to question whether it is still trading.
Laura Carnall wrote: “Booked - all locked up, phone cut off, looks like the have gone out of business.”
Margaret Mcfie said: “Booked in for a midweek treat for me and my family and the restaurant is all shut… No lights on, doors locked? What's going on?”
The Star approached Cargo Hold for comment.