Dude, google it. You'll find an incredible amount of crypto exchanges. However, I'm not quite sure that every exchange would take the crypto voucher. I mean, they only work with real money and real crypto. But I'm not sure about that. You should find a crypto exchange and ask them about it. I've been working in the crypto industry for more than three years, and I've never seen such a voucher. I've been using the services of
http://changehigh.com since I started trading. You can contact them and see if they can help you out.