Translation of disclosure in Spanish

The billing of additional working hours is not justified, since it was our request to download the software and wait for the new version. They have admitted the error of the translation.
I wanted to ask whether you would like to help in another English - Spanish project. The dictionary has around 10,000 -20,000 entries and many of them do not have sample sentences. We need to add sentences to give users more background.
It would be great if we could continue to email, write or chat? I'm looking forward to hear from you again soon! Please write your sentences in Spanish first, and then in German.