Claim of compensation from employee for resigning in a limited contract

Dear Sir,

Hope you're doing well.

Subject: Legal consequences of resignation in a limited labour contract

My neighbour brother earlier went to Dubai for packing work in a hotel for 2 months. And due to the condition of work & not getting a proper salary, he decided to resign.

When he intimated the same to the employer they said he should pay before leaving AED 4500 & his own ticket. He is from a very poor background that's why he came for AED 900 salary.

But now he got actually 750 only without food. Need your kind support to help him to come back to India.