1. Take the reservation number and look for the guest's profile on booking.com.
2. Check for how much we got the virtual credit card. Usually, there's a one or two-cent difference.
3. Open the bill > Click "Add product" > Choose "To balance bill".
4. Input the amount to balance in "BdC adjustment" > Click the + on the "Amount" column > Create.
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5. Once the bill has been balanced so that the amount on Mews matches the Booking.com virtual credit card amount, charge and close it.