Here we have a generic note made in Photoshop. it uses Blending options to allow the item to scale.
Just a quick note regarding the fonts used in the File. I’ve used Arial for the £’s and 300 parts of the note.
They are replaceable with pretty much any font, however Arial is a web safe font and thus found on pretty much any machine. Try replacing them with Helvetica or Lucida Grande if you dont have Arial.