Why social security card numbers are invalid

Invalid social security card number or no information, mainly because the card demagnetization or magnetic stripe information is wrong. Enterprise workers and retirees can hold the card and the original ID card, photocopies or entrust the unit laborers (the entrusted person also need to bring the original ID card and photocopies) to the nearest social security business desk or the four districts of the city social labor insurance office to re-write magnetic or hold the card to the municipal insurance office of the social security card office to re-write magnetic.