SMS service and iMessage does not work, because "My Number" is blank for all my eSim cards

Hi All,

I have a problem with SMS service and iMessage, they does not work, so I cannot send any messages (it shows an error). It seems like the root cause of this issue is blank phone number for both my eSim cards and I cannot put it manually. I used to try a lot of advises (to re-login into Apple account, to set automatically date/time, turn OFF/ON iMessage/Facetime, reinstall eSim etc.). Also I tried to reach out my cellular operator, but they advised to contact Apple Support. I didn`t find any applicable solution on Google.

Please help!