Berkshire Land Rover is locked in dispute with Crossrail after the dealership claimed it was owed thousands of pounds in compensation.
The Land Rover specialist vacated its previous home in Silco Drive, Maidenhead, in 2011 to make way for Crossrail works but claimed it is still owed close to £600,000.
However, Crossrail responded by saying it requested extra information to process the claim in September and has received no response.
Berkshire Land Rover's group brand manager Kieron Sumner said the firm relocated to Stafferton Way with just 30 days notice and saw the compensation to cover their losses as 'the light at the end of the tunnel'.
"They try to push their way through and try to take advantage, thinking 'they are only a small company, we can try and fool them'," he said.
"We've taken legal advice."
A Crossrail spokesman said: "All claims for compensation are assessed under a standard set of criteria set out in the national compensation code.
"In our last correspondence in September we requested extra information that we needed to assess the claim but have not received a response."
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