Translation of Ungerechtigkeit

I did not want to give them any money so they became more aggresive and began holding my hand and said 'please, please' all the time. Finally I decided to give them some money but could not find the wallet.
In addition, after the tests I would like to give also a presentation to some of the teachers, as usually the different ideas come with the presentation. After speaking with them, some ideas emerge...
Yes, depending on demand. Vocabulix is a free service, but no one wanted to finance the German voices yet, which cost a little bit, so we started with Spanish and English which has higher demand.