More than two dozen people have contacted Better Business Bureau to complain about Blue Moon Coins out of Vancouver, Wash., after spending hundreds of thousands of dollars. The company, which sells wholesale precious metals and coins, has earned an “F” rating with Better Business Bureau serving Alaska, Oregon and Western Washington after failing to respond to six complaints.

Customers allege that after placing orders, the products do not arrive; the company has racked up 25 complaints within the last three years including 19 serious ones. The Washington State Attorney General’s Office says it has 16 complaints against the business from 2013 to 2014.

One customer says he lost $168,000 after placing an order with Blue Moon Coins in September 2013. After months of attempted contact, the man tells BBB that he still has not been able to reach the company or receive a refund.

A Washington State customer tells BBB that he purchased $6,000 in merchandise from Blue Moon Coins in early January, but when trying to cancel the order, he claims the company never responded. He now wants to warn other potential customers before they do business. “I want the public to know, so someone else doesn’t get caught in this trap,” he says.

The BBB accreditation of Blue Moon Coins was revoked in December 2013 after the business failed to comply with the BBB Code of Business Practices.

BBB is concerned about the serious nature of these complaints and reminds consumers to properly research companies at bbb.org before making purchases.