Yep, many have, it's a technical issue eBay are aware of, making it a high priority , and working on it.
A member has kindly found a workaround for the time being !
Revise all your listings , there's no need to chnage any prices or details. Scroll down the relist listing form, and at the bottom click on ' Relist with Displayed Fees'.
After a few minutes, that 20% VAT should be removed.
