Leaving the UAE without proper employment visa cancellation

In 2013, I was working in the UAE on an employment visa. I had to return back to India in short time with the intention of joining back in a week's time but the situation didn't permit. Hence, my visa was not cancelled.

I also had a horrible employer and they used to deduct money from my salary for mistakes that happened or losses that occurred to the company because of my negligence. That way I had AED 600 due to them.

I don't know whether they have put any ban on me or whether they reported me as absconding or if any other charges have been framed against me.

Just when I informed them that I am not joining back, they sent an email asking me to send my passport for cancellation and pay AED 600. However, I couldn't trust sending the passport by courier for visa cancellation.

Now, I would like to travel on a visit visa to Dubai with my family. It's been more than 4 years now but I am afraid if there is any kind of case filed against me then I will be detained at the airport or will be asked to pay a heavy fine.