Lost access to my previous phone number

Unity Engine
1

I lost access to my previous phone number, I broke contract with operator ~1 year ago, but when i try to login, AUTH codes sends on my previous phone number. How i can change current number to 2FA without access to previous number ?

2

Errr, what on earth does this have to do with Unity game engine?

3

Oh, I get it, sorry! You should probably contact Unity Support for this though.