When Does My Straight Talk Card Expire. You need to contact the customer support. Give the agent your contract number.

Wait for an agent to pick up the phone or use DoNotPay to skip the phone queue. Straight Talk provides an unlock code if you bought the phone from them and meets the criteria above. Activating your Lucky Mobile SIM card Top-Up Cards are also available at most convenience stores grocery stores and gas stations across Canada.
Wether you have Straight Talk sim card T-Mobile ATT Verizon Vodafone 02 EE three sim card etc they all expire if not activated or used for a long period of time.
Straight Talk Offers an Extensive Selection Of New and Refurbished 4G LTE Phones. When I call straight talk after them trying to activate a brand new phone not understanding what I was trying to accomplish they tell me that my SIM has expired. Ive seen customers who were able to reactivate after several weeks of inactivity. If you stop buying Service Plans or adding Service Cards or refilling your account Straight Talk will stop paying the charges on that line for your use and will reassign that telephone number to a new Straight Talk customer.

