T-Moblile to Go Refill Card T-Mobile TO GO . Look for the PIN# in your email. . Dial *TOGO from your mobile phone or 1-877-778-2106 and follow instructions . Enter the refill card number when prompted Unused minutes expire 30days after activation of this card. With Gold Rewards, unused minutes expire 1year activation of this card. Call durations are rounded up to the nearest whole minute. Void if not activated 90 days from purchase. No cash redemption value. Non-refundable. Not responsible if lost or stolen. Additional restrictions apply; see Terms and Conditions for details. T-Mobile is a registered trademark of Deutsche Telekomo AG. 2005 T-Mobile USA, Inc.