Adding subscribers

Is there any chance to get banned for gaining subscribers from sites such as addmefast or any other site similar? I was going to slowly gain subscibers this way to gain enough to qualify for a specific partnership. I just want to make sure my account won't be banned on the spot because I've put a ton of work into it.

Nope, that shouldn't get you suspended.

Should not. But a faster way is to buy a ton of subscribers off Fiverr.