Dial *ADD ( *233 ) from your T-Mobile phone and follow the automated prompts to enter your PIN.

Many gas stations, supermarkets, and drugstores sell them, though they may charge a small emergency service fee on top of the face value. How to Use the Paper Code

Found at Walgreens ($10–$150), Staples , and Kroger .

Refill funds typically expire 90 days after the last refill if not used or if the account balance remains at $0 for too long.