I am having the same problem. I rang Ebay customer service and no help there. They have had other queries and are looking into it.I will try Aus.Post next. I always tick 'Postage varies with buyer location" Normally Postage in Vic. is $11-$13 and buyer pays according to their postcode. Item now shows as postage $20.50. Very off putting, it won't help sales. I know satchel prices went up.but did I miss something?  I thank you for all information and advice.Regards, Patricia.