The consequences of deciding not to return to the UAE upon being on vacation

Dear sir/madam,

I worked in hospitality in the UAE. I was given the opportunity to work for the same company in a different country as part of a task force team (but still officially paid and employed by the UAE property).

When I was due to go back to the UAE, I had family issues that made me return to my home country and I took my holiday for some extra time. I decided not to return back to the UAE. I'm told that I need to pay 2 months' salary and will need to return back to the UAE to sign the visa cancellation.

What's the consequence for not returning to the UAE to sign this and can the business legally make me pay for the 2 months?