First of all, it should be noted that guardianship is established only for minors (who have not reached the age of 14), who have been deprived of parental care or have become orphans, as well as for incapacitated persons.
In the event that it is necessary to establish guardianship over a disabled person of the 1st group, then such a person is first recognized as incompetent in a court of law, and then a guardian is appointed to him.
It is necessary to apply for the appropriate application for the establishment of guardianship at the place of registration of the person who needs guardianship, or at the place of actual residence of the future guardian.
The conditional term is not a reason for postponement of mobilization. It is not listed among the grounds for exemption from conscription during mobilization in Article 23 of the Law of Ukraine "On Mobilization Training and Mobilization".
https://www.pfu.gov.ua/elektronne-zvernennya/ - here you can fill out the application form. According to the Law of Ukraine "On Appeals of Citizens", you can apply to the Pension Fund of Ukraine and its territorial bodies with a statement, complaint, or proposal using an electronic application.