Kfc northdale - incorrect portions

Stopped at KFC PMB (Northdale) ordered a large mash & gravy for my kid... i asked for more mash & less gravy as i usually do & have been doing so at many different kfc’s more more than a year now & almost every week as this is her favourite meal... as i pull up to the window to pick up the meal i see this, i asked if this is a large & get told yes it is, i explained that it is def not a large as it half full only & if i wanted a regular i wud have orderd one... after losts of debates & arguements with the staff member i them asked to see the manager who also told me this is a large... & refused to even listen to my story. Anyway i cancelled my order as i refused to be ****** & was refunded my money... KFC this is ****************