Stole my money

Bought a voucher online and bought a product advertised by them online. They double debited my account and put my account on hold and now are holding my money , vouchers and goods at ransom. Want me to send them a copy of my ID and credit card. <br> I am appalled they think this is right to do. <br> There service is shocking, no one can help me or knows what to do. I dang even get into my online groupon account.