1.Visit our official website www.bitmain.com, click the profile to sign in.
2.Go into the "user center"
3. Click into 'Sales Order' and look under the 'Pending' tab. Please follow the steps as per the screenshot below.
4. If the shortfall amount is less than $200,there will be 2 options that you can choose to pay for the balance, either PayPal or wire transfer.