I'm in my 2 1/2 months of my work limited contract. My first month with my employer he cut my salary 2500aed to 2000 aed per month because of simple mistake. And now he gave me a paper (memo) that "if another mistake had done starting from now it will deduct from your salary and if the mistake has been repeated again you will be fired from job in this company" I told him that i will not sign that its much better if he terminated me. And he told me he will not terminate me instead i need to wrote a resignation letter. And also he told me that if he will terminate me, i will direct to the airport. What should I do.