You will be tied to 12 month or 24 months contract when you sign up the new Digi Postpaid plan device bundle of your choice. If you sign up plan-only with no contract, you will not be tied to any contract.
Hope my answer has helped! If it has, please click on "This is Helpful" to give it a thumbs up. If this is the solution you seek, click on "Accept as Solution" to help others find their answers faster!