Unathorized chargeback help

Hello, Friends, I have a big problem with a guy who purchased from me digital product
s from my website and i did send him stuff worth 800$ on his private email.
He did pay me using Paypal friends and family i thought i will be safe.
Unfortunately, it looks like he did connect his Paypal to hic CC and now credit card
send me info that he did not authorize all those transactions and i have 14 days to prove it
what kind of products i did send etc.
I did my research and it looks like i need to put something like physical product with valid tracking. What
are my options i did find 2 companies who provide valid? tracking as they saying one is :slight_smile:

another is. https://trackingcheap.com/
I really need some help:
I will pay someone if this will help.
This is huge amount for me and this stuff what i send what worth it!
he just trying to get this for free …

Those tracking websites are good to help you tracking things that are physically shipped. I can probably help you but need to know what is the origin of shipment and destiny. DM me.