After that I contacted customer support requesting for further explanations about this issue with this message:

"That was the full conversation. At that moment I was confused as to why my behavior was considered offensive and even more by the fact that I wasn't informed exactly of what I said, which probably is to avoid offenders to chase the denouncer, and I understand that, but it doesn't allow me to understand fully the issue at hand and why was I reported and investigated and, therefore, I feel my account to be endangered for that particular reason, since I might unwillingly cause the same issue again. I do understand that some language is offensive and generally if I use it is in a closed group context with people I know personally, thus why the issue at hand is particularly worrying for me. I do understand that
the Game Master was doing his job and I understand, I don't mean to chase him/her for it and I do appreciate their cordial approach to this issue, but I would like to request more information because, again, I do feel my account endangered without knowing exactly why. Offensive language can be difficult to define as such and depends many times on personal repercussions of such language on every individual, which causes me at the moment to fear for the integrity of my account because of some accident I may unwillingly cause in the future. I would like to request feedback on this issue if possible.

Hopefully we can clear this up, since I dont want to cause any problems to the community nor be a toxic player. I hope this doesn't cause any issue and again I appreciate the GM's approach to letting me know. Again, my apologies for the hustle."
, to which I got replied that "as explained by the Game Master that has talked to you in game, we will be unable to disclose any other information than what has been written in the mail sent to you earlier.

After reviewing your case, we can confirm that you have used an inappropriate language. If you have any feedback, we would be very grateful if you could submit any suggestions or comments on our official forums. Your feedback will then be forwarded to the appropriate department by our Community Representatives.", and as a result I decided to discuss it here publicly in hopes to address the situation.

That said, I wanted to discuss this situation which I believe gets out of hand.