Change Twitch Bio?

So I created a new Twitch account, but I can't change my biography because of that.

I mistakenly indicated a wrong info that I have to change again.

I do not have a PC, so I set everything up via the mobile browser. Each time I want to change the biography, the info appears: Saving the settings failed. Try again.

Create yourself a new profile or you give me by private chat your account data (which I simply do not go out) and I'll do it quickly. Of course, another option would be to do it all by yourself in the internet cafe.