I bought social security for several years before, but now I don't work in my old unit and I don't have social security in my new unit. I want to buy it again. What should I do?

First of all, you should go to the local social security bureau where you buy social security and ask how to deal with the files. Only the Social Security Bureau can solve this problem. Also, if you want to buy social security yourself, the cost is quite high. If conditions permit, I suggest that you can find a company with a good relationship with you to help you buy social security, and then you can pay them back, which saves a lot of money. Don't doubt this method. I have a friend who does that, as long as you have friends.