Discount
From Tardis Wiki, the free Doctor Who reference
A discount was a reduction to the price of goods if certain criteria were met.
People over 65 years of age got a 10% discount on certain days in B&Q by 2005. The Ninth Doctor asked an assistant for the discount, but upon being asked for his age, he deicded against revealing it. (PROSE: Have You Seen This Man?)
The Eleventh Doctor got a discount whilst working at Sanderson & Grainger, which he used to purchase a papoose for Craig Owens to carry his son. (TV: Closing Time)