How do you activate a postpaid plan? Postpaid Customers can visit a store location or contact us to add services to their plans. Through Data Plan Gifting, you can purchase a plan for a friend or family member with a Prepaid account. For more details, click here. Related articles What is my Credit Limit? How to gift a plan using My Digicel App Why is your credit running out? How do you pay your postpaid bill?