You need digital currencies from other digital exchanges/wallets, such as Bitcoin, Ethereum, and Litecoin, or use fiat currency to purchase digital currency on the OTC platform.
Using the digital currency you already have, you can deposit your 55.com’ account for trading:
1.Log in to the 55.com website.
2.Click Balances -> Deposit and withdrawal.
3.Click deposit -> view deposit address.
4.Copy deposit address.
5.Enter other digital exchanges, choose the coin you wish to withdraw, and enter the 55.com deposit address into the withdrawal address.
6.Check deposit status: When your deposit arrives, 55.com will send SMS to your registered mobile phone and Email.You can also return to 55.com, click on Balances -> Transaction History -> check whether the deposit was successful.