FREE: $5 to Spend at Jamba Juice via PayPal Posted By shuriken on November 27, 2012 Paypal is offering $5 to spend at Jamba Juice for FREE! Just set up in-store payment and go to Jamba Juice to redeem. 1. Click here. 2. Set up in-store payment. 3. Go to Jamba Juice location to redeem. For more Freebies, click here.