How many days do I have to contact the Social Security Administration (SSA) regarding my Self Check SSA Tentative Nonconfirmation (Mismatch)?

If you receive a Self Check mismatch from the Social Security Administration (SSA) you have 8 federal government working days to contact SSA to take action to resolve the mismatch. You should receive a Further Action Notice with instructions telling you how to visit SSA in person to resolve the mismatch.