Maybe, maybe not. Depends on your ISP. I have had e.g. a download limit but not an upload limit in the past.

BTW I thought you said in you first post that you could only download/upload 12GB, so why are you asking a question you would seem to know the answer to?

If you are trying to justify not sharing and just leeching of the network, you will not get any blessings from any member here.

12GB download a month is a joke if you are an active downloader, so maybe the thing you should be looking at is unlimited Internet.