Madam/sir can i ask??im finish contract last month...

We would like to inform you that if your work contract finishes on 27 May, if the employment contract expires, it is not possible to submit the resignation, as we advise you not to resign.
Even the employer does not blame you for any rights or tampering with the date of resignation.
Also, the worker deserves to receive the end of service reward, which is calculated by twenty one days for each year of service and calculated on the last basic wage.
Below the articles from the UAE Labor Law:
Article (132):
A worker who has completed one or more years of continuous service shall be entitled to severance pay at the end of his employment. The days of absence from work without pay shall not be included in calculating the period of service. The severance pay shall be calculated as follows: 1. 21 days' wage for each of the first five years of service. 2. 30 days’ wage for each additional year of service provided always that the aggregate amount of severance pay should not exceed two year's wage.
Article (133):
A worker shall be entitled to severance pay for any fraction of a year he actually served, provided that he has completed one year of continuous service.
Article (134):
Without prejudice to the provisions of laws that grant pensions or retirement benefits to employees in certain firms, severance pay shall be calculated on the basis of the wage last due for monthly, weekly and daily paid workers, and on the basis of the average daily wage referred to in Article 57 hereof for those paid on piecemeal. The wage used as a basis for calculating severance pay shall not include whatever is given to the worker in kind, housing allowance, transport allowance, travel allowance, overtime pay, representation allowance, cashier’s allowances, children education allowance, allowances for recreational and social facilities, and any other bonuses or allowances.

If the employer does not pay your dues, you can file a complaint with the Ministry of Human Resources and Emiratisation