EBAY taking unauthorized amounts from Paypal account

On October 15th, I made a payment from my paypal account as I always have. On October 18th, Ebay took the fees out of my Paypal account a second time without my authorization. When I contacted Ebay, I was told it will be 30 days before they can refund my payment back to paypal.

Why is it that they can take my money without me approving the payment in Paypal, and then tell me 30 days to make a refund? This is unacceptable.