The deadline for considering a complaint is 30 days. But in most cases, the review takes no more than 10 days.
Appeals are reviewed and resolved within a period of no more than one month from the day of their receipt, and those that do not require additional study - immediately, but no later than fifteen days from the day of their receipt.
The mere fact of studying full-time or dually does not automatically mean that the student has a deferment.
To get a postponement, you need to contact the territorial procurement center (TCC), submit an application and supporting documents. They include an extract from the enrollment order and a certificate from the educational institution. The TCC, in turn, can verify the fact of training by sending a corresponding request to the educational institution.
Also, in order to receive a deferment, you will most likely need to go through such stages as updating credentials and passing a military medical board.