How do I contact Telegram support about unauthorized account creation?

My friend sent me an image via text and it shows that at 2am this morning I joined “telegram”. First off, I don’t even know what that is snd secondly, why would I want or need this, and last, how in the **** was I put on this app. The only thing I did yesterday was buy more iCloud storage from apple. Although they have allowed me to be put on the dark web 3 times.

[Re-Titled by Moderator]