Amazon closed my account-no reason

Recently amazon.com has suspended my selling privileges and closed my seller account.They sent me two types mails.First time saying that I am offering counterfeit items on our site and 2nd time- I used a stolen credit card.I answered them that If you ask I can show you all kinds of document to prove that my card is not stolen card. This card is issued by payoneer on this February at my name.I have contracted with my card company,they have said, my card's everything is fine.I sent a screen shot of my master card's recent transaction. I am sohan sarder from Bangladesh outside from US.I am a fair New seller.I have sold and provided all authentic items on AMAZON.COM site,there have no fake or counterfeit items.I sent my all orders in right time and provide best product with tracking number as my level best to our buyers.I didn't cheat with our buyers.But i don't know why am i claimed with this counterfeit ?I am so sad.Please try to understand,please reopen my account.There have 6 unshipped items.But i have already shipped out. Our's is a very poor country. I worked hard to earn these money to start this business on amazon. If you do not reopen my amazon account I'll be ruined.I ahve sent more mail, But amazon don't any answer me.