How do I block access by eBay to my account

Description

As we who sell on eBay should already know, eBay is no longer using PayPal to send proceeds (funds) to that result from sales on eBay. We are now required to use a Bank account instead of PayPal.
How can I prevent ALL access by eBay to my PayPal account, but still allowing me to make purchases using my PayPal balance or a credit card through the PayPay payment process? In other words, I do not want eBay to automatically pull funds from my account for any reason, like eBay fees or possible refunds to buyers, that I do not approve and agree to.
Thanks in advance for any help.
Peter B.