As per this article, you could be eligible for a refund if you purchased an "on sale" Dell monitor as an add-on to a package between 2019-2022.
Shock horror
"Dell Australia admitted during the court proceedings it misled customers because most of the time, the monitors were not sold at the supposed original price touted before the discount"
And
“In some cases, consumers paid more for the add-on monitor advertised as ‘discounted’ than they would have paid if they had bought it as a stand-alone product"
@Muzeeb