I dont do free postage. I try to keep my item prices down and then add the postage. Ebay keeps changing some of my listings to free 4 day postage so I make very little from my sales. Can I stop this?

Ebay has changed some of my items to free 4 day postage which has left me with barely any profit. | Selling

Ebay has changed some of my items to free 4 day postage which has left me with barely any profit. | Selling | eBay Australia