@4shadoww: In general any requests (whether for software features or rights) should include specific reasons why something is wanted... :)
It's hard to guess form your recent contributions.

Thank you for fast reply. I need rights for script testing. It would be easier to test script if I would be able delete that page what script creates.

Please elaborate what your script does exactly and why, as "script testing" does not necessarily require "administrator user rights", and not necessarily on https://deployment.wikimedia.beta.wmflabs.org either.
Which exact permission are you asking for? sysop? Something else?
Why would you need to delete the page at all, instead of creating some page on e.g. test.wikipedia.org and overwrite it?
Why do you need such rights on https://deployment.wikimedia.beta.wmflabs.org instead of e.g. test.wikipedia.org?

The script is kind of archiving bot, it's under development, and I want to debug it. In fact I could just clear the page, but if I could have permissions to delete page it would be better, because then I can make sure it fully works.
Sysop permissions are the exact permissions.
I asked permissions for deployment.wikimedia.beta.wmflabs.org, because I thought it would be more like right place to try these kind of stuff.
But if it's okay to try the script on test.wikipedia.org, then I'll do it there, and if you're going to give permissions, I would like to get permissions to my test.wikipedia.org account instead of deployment.wikimedia.beta.wmflabs.org.
test.wikipedia.org user: https://test.wikipedia.org/wiki/User:4shadoww

Okay. Thank you anyway.