Update contact made and refund half shipping cost like it should have been

I cant add picture of info of info above because cant add screenshot here I even mention this to seller who i have brought from a few times,not a private seller either,my 2x $5 Window shade rolls now cost 30+ instead of 20 so yeh still feel bit ripped  off and the no reply don't help. Bugger is what i say

Thanks Gary for info,,this what i read for shipping NO EXTRA CHARGE IF you buy more than 1 item from the same item listed PRICE PER ITEM shipping charge per different items brought from same seller I brought the same item not a seperate listing so stumped , still no contact from seller Thank you