Go to your personal account, then click "Receive", to get access to coins for replenishment, and select the desired coin.
Then select the "Network" you want, and enter the top-up "Amount" and click "Continue"
Copy the "Address" or scan the code to send the amount. Pay attention to the minimum deposit amount.
After sending the funds, click "Confirm Payment"
In the next window, enter "TXID/Hash" of your transaction and click "Confirm Payment".
If the "Confirm Payment" button is not available, then wait a moment: the replenishment will happen automatically.
After sending the funds, wait for the transaction to be confirmed online. After this, your funds will be automatically credited to your account and will be available for investment.