I sold an item on ebay, listing was removed after payment was made?

[Andi]

NO the money does not Automatically get sent back

The buyer gets a message saying something like
' we detected a problem with the listing'
'if you have not paid, we recommend you do not complete the purchase, if you have completed the purchase and do not get the goods, please request a refund'

I have had listings cancelled / users cancel their account after I purchased and similar events.

I had paid, I got the goods.

Due to the fact that this is Ebay cancelling it by policy,
I would contact their support and get them involved - and ask for confirmation of why they consider it in violation. Do not argue about being fake / genuine yet - let them make that statement first.

I would also message the buyer, and let them know that you are discussing with ebay due to them delisting it, but will be sending soon. (don't make the buyer nervous and cause them to try and claim back because of that)

and when you send the boots, make sure you send
Recorded (proof of arriving only and only if they arrive) or
better
Secure Delivery (2 pounds more, but is full tracked from sending)

that way the buyer has less ability to claim their did not arrive and claim on that basis.