ما هي مدة فترة الإشعار بعد إرسال خطاب الاستقالة؟

Thanks for your query.

Since you have already submitted your notice (it should be a resignation), your minimum period of notice to be served will be served according to your employment contract and should not be less than a minimum period of 30 days.

IF the employer does not accept that, you can file a complaint with the Ministry of Labor.