Asking an employee to pay for visa costs to get his passport after resignation

Hello,

My employer doesn't pay my salary on time. I had personal problems, stress, and migraine. When I had to go to a hospital, I didn't have money for that so I took 2 days off after informing HR and the manager.

The next day I managed to get money from friends and went to the hospital. After that, I took a medical certificate and urgent resignation letter because of mental stress.

They asked me to pay for the visa so I can take my passport. Of course, I don't have money and didn't get 1 month's salary. Now they filed absconding against me.

What should I do?

And I was on a 6 months probation period. This thing happened after 3 months.