When uploading your Company Logo, please select Resize to 120px. You may want to make it a little largerr, but not too much so that it will not fit in the template window.
The company logo will only appear when you select WHOLE COMPANY HTML CODE which offers the requestor to select a department.
Each department then has its own logo.
The reason for this is to allow the flexibility for multiple companies, websites, etc. For more information on this, please refer to our blog article here on this topic.
Below is the initial WHOLE COMPANY request window.