Preferred Customer Service Government.com Sold a fake signed 1997 Ken Griffey Jr. jersey Burnsville Minnesota

I purchased a game used signed Ken Griffey jersey on ebay with this firms invoice from 7/21/98 order # 2584229 Preferred customer no 151967, The jersey came with an invoive from this firm. I tried to sell this jersey through a reputable auction house and they sent the jeresy to PSA?DNA one of the industry leader in memorablia, they said the jersey was not authentic. The original purchase price was $4995.00. I just called the800 # on the invoice and the compant still exiasts though they sell only coins, which the back of the invoice advertised. The agent I spoke to said they only sell coins now and remembers they did sell jerseys & other items but there was nobody there that could help me.