How to claim 2 days MC after 3 months while under 6-month probation?

How can we claim it back? My company deducted my salary based on 2days of no-paid leave when it suppose to be 2 days MC after 3 months of my service when I am under probation for 6 months.
Should you have served the employer for at least 3 months, informed or attempted to inform employer within 48hours and it is valid MC certified by the company’s doctor, or by government doctor (including doctors from approved public medical institutions), You may reach your HR to address the issue.