NCsoft Master Account Questions

About 4 years ago my roommate had an extra guild wars account, so he gave it to me to use, then to own. He had 3 accounts in total on his nc master account. I have 3 questions.

1. Can my account be removed from his and put on my own, because I also have 2 accounts. And 1 of them I can't change the email. He is fine with this. He's actually trying to figure out thees answers also.

2. Will I need my own NC account to link to gw2? Is even it necessary?

3. Is it even worth it to register an nc master account? I've heard that a lot of accounts have been hacked and/or there's been a lot of problems with it.

Please keep in mind my roommate is my best friend and would never be shady. I trust him with my life lol. But I moved in with my girlfriend awhile ago. But we're still real close.

If I need to give more info just let me know, and i'll provide the details

Thank you for reading and any answers

1. Probably not. You can ask Support if you'd like to try though.
2. No one knows. I sure hope not though. I probably will not buy it if it needs to be linked to the NCMA for the HoM to work.
3. Definitely not. To say that there's been a lot of problems/account theft associated with it would be the understatement of the year.

How would i go about contacting support?

I have two accounts and neither one are associated with an NC account. I seriously doubt ANet would require you to have an NC account in order to obtain rewards in GW2. Besides, I find it highly unlikely that you could benefit from 3 accounts unless you get 3 GW2 accounts to link them to.