I applied for pension exemption as a student, but they still send letter to home.

So, last month, I go city hall for both reduction in health insurance and exemption in pension. They said something about they will send me a new letter for health insurance, but as for pension, they simply said it as a done.

Now, after 1 month, no letter on health insurance and instead, a letter for pension.

I’m feeling frustrated, as the letter said the deadline is on 21st, but I have parto on 20th, so no time for that. Like, okay, at worst I will have to go to city hall another time, but they literally written that they can force to take pension loan, and now I’m looking at them as some dumb jerks.

Edit: I’m foreign student, the letter is in yellow color, with a special notice written on it.