Removal of the Copyright Link in the Footer

Hello,

I really like the Parabola theme, but I don´t like the Powered by Parabola and WordPress link in the footer.

After reading that the only acceptable way to remove the Link is to donate 25 $ I have some questions.

First of all in which way will you help me to remove the link?
Will you simply give me instructions on how to remove it or will the removal be done in another way?

Second, will the footer stay without the Copyright Link, even if there is an update for the theme or WordPress?

Third, if I have more than one website running on parabola, will my “onetime donation” be enough to remove the Link from all of my projects?

Best reagrds,

Mattz