this method works best if you order meat/hamburgers

to be safe i suggest to:
create a new account with an ip with low fraud score (check scamlytics)

use a temporary vcc

dont use your phone number (check my other threads for free/paid phone numbers best for verifs)

when you put the delivery address change the address a bit, even with the civic code (idk if other countries have that)
or use a street thats very close to you and when the delivery guy is there just a walk a bit or call him and tell him the right address

now for the actual method

if you ordered an hamburger snap a photo of the inside after a bite (sum like this https://www.shutterstock.com/search/bitten-burger)

with your iphone edit a photo a bit to make it seem raw almost unedible
contact support and boom ez refund

if you havent ordered meat and something like pizza the best thing to do is either:
tell suport that the pizza was bitten before you got it (just bite it and snap a photo afterwards)

get a photo of a slightly different order
call support and tell them the order is wrong