Translation of sine in Spanish

Clara agreed about a month ago to give me her acquaintances' contact details from NYU and Columbia. I have just spoken to her now and she told me that you could help me and send me those files.
Seldom only do such incidents occur, thank God, but the fact is that these incidents, which are started by a relatively small group, need to have a broader support among others in order to exist.
Thank you for the quick response and for your feedbacks. You are absolutely right about the verb 'communicar'. Our verb list section is new. We will add this verb, as well as many other less common verbs.