Charge an exisiting customer for a recent transaction

[LTG20201]

Hello there,

I own a beauty products online store which just launched early this month. So far, we have had 2 successful orders which was paid via PayPal. I only just realised today that I haven't received payment for them. How can I charge an existing customer based on a recent transaction I have not received payment for?

I'd appreciate helpful responses. Thank you.