The Moncton Better Business Bureau says it has investigated dozens of complaints about a local car dealership.

More than forty cases have been brought to small claims court by customers who've dealt with Rallye Motors Hyundai.

Some complained that they were asked to make a deposit as part of their negotiations.

They said when they changed their minds about buying the vehicle, the company refused to return the deposit.

Jill Atkinson, with the Better Business Bureau, said other issues have come to light.

''Advertising, sales issues, warranty issues, problems with products and services.''

Claude Sivret was shopping for a Hyundai last year.

When he went to Rallye Motors, he was asked for a deposit of $500 dollars as proof he was serious about buying a car.

Sivret later changed his mind about buying a vehicle from them.

He said the company refused to return his deposit.

So Sivret took his case to small claims court. He won and got his money back.

Court documents obtained by CBC News show 45 complaints have been filed against the Hyundai dealer since 2004. Some of the deposits were for $1000.

Most complainants won their case.

Lawyer Michel Doucet has seen the dealership's agreement and said the deposit clause is illegal.

Rallye Motors did not return calls from CBC News.

The business bureau has issued an F rating for the company.

The dealership's parent company, Hyundai Canada, told CBC News through an email that this is an internal matter and they are looking into the complaints.