Basically to unlock your points balance's value, you'd have to join the loyalty program. You can convert to SBR Pro by making a $200 donation to the Make A Wish foundation, or Doctors Without Borders. Check the pro application for details, and shoot me a PM if you have any questions.
Also just to confirm, if you do decide go Pro, you can immediately use your entire 4,650 points balance to donate to the charities listed in the SBR Store that you mentioned.