Kokumkin pension

First of all, I am Myanmar and English is my 2nd language. Long story short~

I worked here before in 2015 May to 2016 April for 11 months. When I went back to my country, my zairyo card has been pinched and rendered unusable and my records everything here has been erased I believe. Then I had a chance to come back to work here in 2018 May 1st, currently I am here in Japan. Recently I have got these Kokumin nenkin payment slids of 2 yrs amount ... obviously I was suprised to see that although my ID card has been rendered unusable but I was still unroll in kokumin pension system?

I donft mind paying taxes that I should pay for the country I living in and working in but I wasnft even here and I still have to pay after I came back .. all the records should have been renewed or something. Honestly I donft want to pay because I wasnft even here and my records should have been erased.

My question is.. is there anyway to reduce the amount or .. anyway to complain? I will be here for another 3 or 5 years so I canft ignore these because I read that notification and warning letters will come eventually and worse case it goes red and come to seized properties of some sort.

Sounds like your previous company did not properly enroll you into the pension system, and as a result you failed to pay pensions during your last stay. If the requested pension payments cover dates after your departure, then this may be because you failed to properly de-register yourself at the city hall when you departed.

Obviously, yes. I just happen to read about how I need to de-registered myself at city hall before I permanently leave Japan. I didn't know that, no one to blame but I think they, my employee should have remind me or something cuz' I didn't even know I was "registered' in kokumin nenkin. But when I left Japan my ID card has been pinched and I thought I was officially out of this country and everything related to me was de-registered. Well, I learned anyway, thanks for the response Uji. Appreciate it