Can the old-age insurance 20 15 be repaid?

Go to the social security center and ask, pay attention:

1. If the social security center says it can make up the payment, it should make up the payment immediately to avoid falling asleep.

2. Don't be discouraged if the Social Security Center says it can't make up the payment. Always asking. He will change frequently, not today, maybe tomorrow. I met the same staff member and said no today and yes the next day. I asked him why he said no yesterday. He said, it's today. Why don't you hand it in quickly? Why did you ask yesterday?