The first time I tried changing the date to 26th of December it didn't work so what I done was...
I went on sims then came off of sims then settings then changed the date to December 26th then deleted sims off history while still on settings I then went back on sims and there was 1,000 money. As I kept doing it the amount of money I got kept getting higher I know receive 20,000 every time I do it.
Hope this helps. P.s ( its an iPad 2 I have