Doesn't work on tablet

Hi

I wanted to create a wordpress via my tablet today, but it didn’t work. In the beginning I choose both a nickname and a blogname that wasn’t available, so obviously I tried something else. I finally found both a name and a blogname that wasn’t taken, but every time I tried to start the blog, it just went back to the register form, this time with my first choice of nickname, that wasn’t available. I try and change it to the available name, and try again, and it keeps doing the same thing.