From your coin account, click "Receive" to view your account address.
The account of Monacoin supports HD wallet. "HD wallet" is the technical standard suggested in BIP-44 from bitcoin improvement proposal. A monacoin account of D'CENT wallet manage 15 addresses. Any address in the account can be used to receive coin.
Click "v" to see all of the addresses list and choose the address you want to use.
For more information about receiving coin, click below link.