Why are new contacts not syncing with Telegram on iPhone?

A month ago I noticed that any new contact that I added was not synchronized in telegramm. So I have turned off and then turned on synchronization of the contact. I gave all permissions to telegram. The problem has not been

solved.

[Re-Titled by Moderator]

Original Title: Any new contact added is not sincronized in telegramm. I have done all intruction that I saw before. the problem has not been solved