Waiting may have been a mistake, it costs nothing to do the tasks, and the lower levels are easier to finish, so you have missed out on the rewards for them.

When you score 15 points, you can claim the rewards,theres a link to the brotherhood underneath, I do not remembber what it costs to join.

Well, that was unfortunate, guess I'll have to do it the hard way. Thanks for your reply. I haven't seen any links to the brotherhood in anything. Not sure where you're talking about scoring 15 pts. Sorry I'm such a noob, hopefully, I'll learn and grow out of it. lol 

Do your dailies/weeklies/monthlies. When you finish one of those and go to claim it there will be a box to check to join the Northern Brotherhood.

If you get a significant number of your dailies etc, the Brotherhood is a very good deal. If not, well over a months time you will get much more than the monetary cost in extras.

Thank you! :)