I decided to give back to the community i've been leeching from.
It seems like nobody knows about this, so im gonna just give simple steps.
1. Install 3.55.1 Rebug (if not already installed)
2. Install rebug selector from
PS3 (if not already installed)
3. Start up rebug selector & turn on Rebug & Debug mode.
4. Go to debug at the bottom of settings (press X if not already pressed -thats the joke)
5. Change NP environment to prod-qa.
6. Restart
PS3
7. Make a new user & use quick sign up.
8. Start up RB3 & go to the store.
9. Have fun guys
You'll have infinite funds.
This doesn't work with Guitar Hero.
Also, Don't delete the user the DLC is activated on or you wont be able to play it on your main account anymore.