Dropping a class PLEASE HELP

[Charlottedoug]

Hi there. 
I am currently studying a subject that I have decided I want to drop as I want to change streams from PR to Advertising. I have a few questions:

1. The Census date was the 31st of august and final date to drop is 15th of October. Will I have to pay the fees for it? Can I apply for special consideration to avoid the fee? 
2. Am I better off just completing the subject as the points will still go toward my total points? 
3. if I do drop the class, I will then only be studying 2 other classes. Is this okay?/allowed?

Thanks so much to any replies!!  I appreciate it.