Hi there, @Charlow37.

I understand that being able to charge clients for processing fees would be helpful. Rest assured that I'll relay this message to our team in concern here on my end and add your vote for this one. 
 
You can also share your thoughts and ideas through your account. Our product development team reviews all the feedback we receive to ensure we’re meeting the needs of our customers. 

Here's how:

1. Select the Gear icon at the top, then Feedback.
   
2. Enter your comments or product suggestions then select Next.
3. You'll be provided a list of suggested Help articles related to your comment. You can read through them or select Skip and send message.
4. From the drop-down, choose the appropriate category, then select Send message.

Get back to me if you need more help with processing payments. I'm always here to assist.