Hey @jaimemontezsilva75
If you would like to edit the text in your buttons, there are a couple of ways to do this:
The best way to handle changing text on your site is by using a free translation plugin like Loco Translate. This will allow you to find that phrase and change it to be what you’d like.
Another option is the Say What? plugin that does much the same as far as translating targeted text.
To update the text in emails you can use Template Overrides to make those edits.
To get you started take a look at WooCommerce -> Settings -> Emails and edit an email. Look at the bottom for this section.
Screenshot: https://cld.wthms.co/IvbcHQ
I hope this helps!
This will copy the template file to your themes folder where you can then edit it.
Cheers!