I haven’t got the ios13 update yet

You don’t have a 6s or newer. 6s is the minimum for iOS 13.

In Settings>General>Software Update, what do you see?

What version of iOS are you currently on?

~Lyssa

It shows I am on IOS 12.4

Have you installed the beta profile ever?

~Lyssa

I have used Beta before

Follow these instructions-->https://beta.apple.com/sp/betaprogram/restore#ios

12.4.3

i haven’t got the iOS 13

Why not?