If you see a good offer on that website, NEVER USE IT!
I specifically added the balance to purchase an AWP Asiimov which was listed on shadowpay for 225.92 USD. After waiting for 10 Minutes to confirm the trade, the seller cancelled the trade and I did not receive anything and now I am stuck with the balance. So you see a good offer and add a balance, you never get your item, they do not offer refunds and if I say that the customer support is terrible, that would be a compliment. Terrible responses and response time from the support, I explained the whole situation and the answer I received was " as far as I can see, the money is in your balance,sir", which is horrendous. I asked for escalation to a manager and did not receive a response for 4 days. So I ended up looking for another item for a week and I finally found the best offer for the balance I had and I lost over 30 USD and 7 days of searching for a reasonably priced item. NEVER EVER use this website and stay away, if there was a negative review I would leave a -5 stars