Where can I get it?

You may sign up for a Zero1 Jumbo plan at the following: 

Zero1 Customer Service Centre located at 8 Burn Rd, #01-03 Trivex, Singapore 369977 

The Zero1 website or Zero1 Mobile App 

Over 70 authorised retailers across the island listed here

Accepted payment methods: 

Credit/debit card (website or app sign ups ONLY) 

Cash (Customer Service Centre or authorised retailer sign ups ONLY).