Why is an amount of money withdrawn from my paypal account

I just got a receipt from Paypal saying that an amount of money was withdrawn from my account by Ebay marketplaces Gmbh. 
I want to know what is this for. However, I just checked my bank account, the money has not been taken from it yet. I just got the receipt from paypal.

View Entire Topic

 Just fellow buyers and sellers like yourself here, no eBay or Paypal staff read here

 

However

 

I imagine that would be the selling fees for the Roland you sold

 

I pay my fees directly out of my PayPal account, I have no idea how long it takes to 'reflect' the charge in a person's bank account but I doubt it would be 'instantly'