How can I claim my labor rights after being forced to resign if I left the UAE?

I worked as a Graphic Designer at a document-clearing service provider company three months ago. During my employment, I was not paid for more than a month.

When I inquired about the payment, my employer shouted at me and canceled my work permit on the same day without any notice.

Additionally, she sent a fake email from my official email account to herself apologizing for some unlawful act.

She called me to come and sort out my remaining dues, but instead, she misguided me to physically resign, which was a big mistake on my part as an employee.

Now, I would like to know what documentary evidence is required to file a complaint. I look forward to your prompt response.

I have all emails and other correspondences except the resignation copy I submitted physically.

Is it possible to complain while outside the UAE because as per policy, I had to exit the UAE in order to change my status?

I also kept snapshots of WhatsApp when she was harassing me.